where can i buy parts for an older current p/s, model 8102/8103

[spacenyc]

friend gave me an older p/s, current usa power 8102/8103, its missing the collection cup and the tube that connects the pump to the p/s. is it worth repairing, any diy solutions, where can i buy parts, what pump should i use. cant seem to upload a pic but will try later thanks