Hard to put a cat-back exhaust on myself?

[C's 94 InTeGrA]

lol Stefan... i wish i could man.. but my car isnt fit to drive up therre right now... Well we got some problems right now. The bolts holding the pipe to the cat are sooooooooo rusted and will not move... i tried everything.. i even sprayed them with pb blaster too. Also a funny thing. Someone maybe the dealer when they put a new cat and exhaust on my car brike the bolt holding my cat up to the header collector.. so ya. I am thinking of taking it to a muffler shop.