So this is what i got just now. used tc rims and tires. I only got them for $250 and the downsides are the tires. 2 yokohamas, 1 bridgestone, and 1 falken. also, 1 tire has a nail in it and i think that tire needs to be replaced because theres a lil but of thread left. 1 tire, bridgestone, has a bump almost near the sidewall. they said they dont know what it is. do i need to replace it? is this a good buy? if i buy new tires for the two, howmuch will it cost? Thanks!

Edit: im totally noob about these stuff. if i get new tires and they get my old ones, do i get a discount?
#1 Yokohama S32A

#2 Same as above

Do they need to be replaced?