new pump for a Kuzma Airline

I picked up an older Airline (Silentaire 15D pump pre 2010 based on having the red instead of the silver filters) . It worked for a while and sounded wonderful, but the pump overheated and now won't pressurize. It was working fine (3 min off, 1 min on) so I don't think I have a leak. Motor got hot , it still runs, but no pressure. 

Rather than try and fix a 15 + year old pump, can anyone tell me what I need to replace everything up to the point it plugs into the arm. I think a new pump and filters are in order but Kuzma wants a small fortune to replace it all.

However, if the consensus is that I should stick with all the Kuzma supplied parts, I will go that route.

thanks