Frame is the most important component of the bike. You need to get some photogs up so I can see your frame. I may be able to help you ID it. Closeups of the fork crown, head lugs, seat stay caps(at seat lug), and dropouts will help.

The difference between a good lugged frame and a good TIG frame is subjective, and will vary depending on a zillion different factors.

Put some b4 photogs up also, if you have them.