Hi Floyd,
I have a later model original Coulter red tube 10". It's heavy and hard to move. Not all that stable either, as the bearing surfaces are not teflon. The mirror is very thin, and glued to the cell, which for a 10" mirror is not the best solution. The focuser is somekind of pipe fixture, which works, but begs to be upgraded. The optics on mine are passable, but I also have a 13" mirror from Coulter that is >very< good. The earlier blue tube models are supposed to have the best mirrors, as they were close to full thickness. I got my scope very cheap, so I was not as concerned about all those things.
Bottom line, check it out in person, and if things look OK and you don't mind the weight, you may be OK. But as others have said, these are really "project" scopes, so if you like to build and modify things, this could be your scope !!

Oh, as others have mentioned there is also a "new" Coulter which will probably be a completely different configuration, can't comment about those.
Let us know what you find out !
David Simons