Re: Make them an offer?
I believe the issue with continuing with the ISS is its running costs. It's getting on a bit and needs quite a bit of maintenance. I seem to recall that NASA, et al, have been touting around for commercial companies to take it on, but no-one wants to.
If you want an orbiting garage, then you'd probably be better off starting with something new.
The other issue is: Where is the fuel coming from? If it's coming from Earth, what are you saving by sending the fuel & vehicle up separately?