question about rebuild
 

is it okay to reuse 3 piece apex seals from a t2 with 50,000 miles on them?and at what point does the side seals become unusable?

you should replace the seals but if they spec out okay its up to you to use them.
Are you doing a budget rebuild?

budget in a way if i can save some cash it will be a good thing but i also dont want to be rebuilding again 20k from now im doing a turbo sap and was trying to cut corners (which i dont think i should do)