I got them from Battry Hookup[1] late last year. I wasn't ready to do the full build yet, I've since built a "shed" that is way overbuilt and more of an kff-grid tiny house to store all of our solar equipment.
That site is pretty hit or miss with stock since it is all repurposed equipment, but if you happen to catch the right equipment going by you can get a really good deal for anything DIY.
That site is pretty hit or miss with stock since it is all repurposed equipment, but if you happen to catch the right equipment going by you can get a really good deal for anything DIY.
[1] https://batteryhookup.com/