You could rebuild them with new chra... not sure how much that is going to run you but if you are pulling the motor for the first time its probably time to refresh your engine with new gaskets and stuff too theres a good kit around for under 300 bucks at concept z im looking at right now for that which includes all the turbo gaskets as well and you might as well upgrade the turbo lines to stainless steel ones too...
I am in the same situation right now. Sport 500s are cheap right now around 1300 at concept z... so im really considering that too since ill have way more money to play with.