[Q] Whats compatible with Boost SGS3 SPH-L710 NJ3?

I really tried to find the answer to this on my own. Would really really appreciate any help.

I have phone rooted and want to know which ROMs I can flash. For example, I saw in one OP that I had to be on ND8 or NDC. It then gives a link for those on L710T. Ok, I was told that ND8 nad NDC were the Basebands. Mine is NJ3. So is NJ3 compatible with one of those? I found a NJ2 ... Is that compatible? As for the link given, is L710T a model number (Its so close to my SPH-L710) except for that "T" (lol) but why would the requirements go from a certain baseband to model number?

Then I see d2SPR and MK5 and MK3... things have gotten so complicated...I'm not even gonna complain that theres a verizon , at&t.

the main thing is i get the hotspot working., so if someone can tell which mod works on boost mobile samsung galaxy s3 on android 4.4.2 model number sph-l710.. NJ3 (im not even sure if its really the baseband) . And please if there is one on there for ND8 NDC MK3 etc please tel me which specific one it is.

a bonus would be to tell me what i had to look for to know my phone is compatible