Does it matter which brake kit I go with after swap?

Hey guys,

looking to go from my 7 1/4 to a Dana 60 that I have cut already. I had drums on the 7 1/4 and I was hoping to go to a disc brake set up for the rear. My question is, if I am going to a completely new set up, does it matter which disc brake kit I go with? Would it still be considered a "conversion" kit?

Thanks

Jon