Best printesr for making model kits?

[DrLuigi]

I have a lot of replacement parts that are either not available, or much to expensive; and improvements that I want to do to things, so I'm going to need a scanner that will scan existing parts, sculptures, mockups, etc. that are all less than 1 cubic ft. in size, then I'll need to modify them. What scanner or scanners, and software do you recommend that will work well with the printers you've recommended.

Thank you again!

Or you could just make a 3D sketch from it and make the 3D file yourself?

I aint sure what sort of objects you mean, But sketching it is generaly quiet easy and fast anyway depending on the model.
As you are getting/looking to get a printer i would recommend you getting used to a 3D sketch program anyway, so after grabbing stuff from the net, you can make your own stuff designed by you.