That is pretty good. kH is a little high for some things but in general that is pretty middle of the road. With a kH of 8 I am assuming your pH is a good bit above neutral so you will either have to pH your water down or avoid acid loving species like discus.
In general my kH goes down with my pH. For my hard water tanks I use tap water (similar parameters to yours, suitable for guppies, rainbows, neocaridinia, ect). For my soft water/south american tanks I use RO water and remineralize to gh ~8 and kh ~3-4 then I use seachem acid buffer to bring the pH down to about 6.8.
Remineralizing and pH'ing is a constant chore and it makes your system arguably less stable. Using your well/tap water straight would make your life easier but your plants might not do quite as well. Lots of options!
Bump: Just read you previous quote about angels neons ect. These are south american and will appreciate a pH at or below 7 and softer water. Not saying they wont survive in your well water, but you will have better success choosing different fish or changing your water chemistry.
I would suggest you look at making your tank a rainbowfish community tank. They are a absolutely gorgeous group of fish, very rewarding, and it will be less of a headache to keep. because your tank is so big, changing your water chemistry would be a chore and a cost I personally would rather not do.