I've gone full DIY for my setup. My primary one is a hybrid on/off grid setup, with the on-grid part being that the inverter has a mains utility input for powering any devices plugged into it should there not be any panel activity and the batteries are drained. But, it doesn't feed back into the grid (important to not charge the grid wires if there's technicians working on it, but if power dies, I'm likely going to kill the main breaker regardless so I can use my inverter generator if I wanted, since that can also be used to charge the batteries and power stuff).
My inverter powers a few things with a total capacity of 30A that I have split between two 15A circuits, one in the house, and the other in the garage.
My panels are ground based, purchased secondhand for a steal, about $0.05/watt. About 3kw worth, probably going to add some more to safely max the input of the inverter. Battery backup is LiFePO4 batteries, about 15kwh worth. I'm aiming to get it up to 30kwh before summer really hits.
As of now, I can run a chest freezer for about 20 days without any sun, or the majority of my "high priority" stuff (NVR, local networking gear, etc) for about a week. Pretty happy with it. The most expensive single piece was the hybrid inverter. Even the PV combined box wasn't that bad of a deal, and made it easy to hook things up. I have a secondary setup that has about 1kw of panels, 3600Wh of battery capacity, and a 2kw inverter. That one is entirely off grid.
That setup sounds great. The system I'm working on putting together is similar to your secondary setup. I picked up most of the equipment after Huricane Helene when we had neighbors who were without power for a couple of weeks (we're kinda lucky where we live that we're about 200 yards from the local fire department and on the same trunkline so they got our power back within a couple of days), but I have around 1.6 kw worth of panels and 2400 Wh of battery. Have a cheap 500w inverter for now, but will probably upgrade when I can afford it.
Mine will also be entirely off-grid. Hoping to get it installed soon now that the weather is getting better. Spent most of these colder months working on lowering my power use requirements - like moving a bunch of services off my more power-hungry (~60w average) homelab/NAS onto a Raspberry Pi and another ARM SBC that combined pull around 7w.
At this point, I'm not going for being able to power everything through an outage. Just trying to have enough that we can keep some essentials and some basic comforts like lighting in the evenings. My roommate has some off the shelf Eco-flow batteries and panels that have been able to keep our small chest freezer powered, but A/C and water heating will be things we'd have to go without, and we'd have to move cooking outdoors until we can get our old fireplace/chimney remodeled.
Once I have everything a bit more organized, I'll do a full writeup including parts used. I need to sort of redo.... well, everything! My new greenhouse build is taking place on a different part of the property that will let me take better advantage of the space, and I need to move it all to accommodate. But, it will be a lot more organized as a result as well. I have a data rack that I repurposed that can hold 1,500lbs. It's wheeled so I can move it if need be, but to be safe, I'm going to put enough pieces of reclaimed pallet wood underneath the frame to sort of take the pressure off the wheels themselves. The rack will also make it easier to expand battery capacity, since each shelf can hold either 2x 24v 100AH batteries, or 3x 12V 100AH batteries.
I'm very excited to start the greenhouse up, especially it will be a self-contained, automated, solar powered dream. 4x IBC totes totaling 1100 gallons with UV disinfecting lights, fed by a well with a filter and the tap located inside the greenhouse (to avoid freezing in the winter), with the well having both an automatic pump to draw water as well as a manual one if needed. Hydroponics set to keep the plants hydrated, with the capability to have a wood stove to keep it warm for winter growing (which will also heat the water in the totes via copper pipe around the stove pipe with a 12v pump cycling water, a double plus since water is a great thermal battery!). All managed by my Home Assistant server, but I can always manually turn things on/off as well with 12v timers and switches.