If you get it scanned by a bureau I would expect all the crappy tidying up to be done by them.

You should end up with a fairly clean useable file - or what the hell are you paying for ?

Now, depending on the size of parts you want to replicate you might consider an all-in-one scanner and 3d printer.
there are a few around, cheapest coming in at around $800
The xyz Davinci aio - by all accounts does a passable job of being a fully functional 3d copier.

A more expensive all in one is the Zeus - runs at around $2500.

I will say that getting parts printed by a service is bloody expensive, add in the scanning costs and I reckon you could easily justify a davinci aio.