Lunar Boom Town/Spacesuit Maintenance Repair & Enhancement

http://en.wikipedia.org/wiki/Spacesuits

It seems like samples of every old spacesuit Spacesuits ever manufactured by Terran space programs has made it to Boomtown.

Business practice challenges:

What hourly shop rate should we be charging on these old suits to keep them functional?

When should we recommend to their owners they purchase new suits?

Should we be working on older suits at all considering the legal liabilities?