1984 Centurion Turbo

Hi All - first time I've posted anything to a forum in a looong time, so here goes! I picked up a 1984 Centurion Turbo frameset, zero original components, and want to get some ideas, opinions, advice. I just happened to run across the frameset and didn't know anything about it, or what it originally came with, so didn't know what I was getting into. Apparently it came with Suntour Superbe Pro, and when I went to look for original components my eyes began to water looking at prices on ebay. 126mm rear spacing for a 6 speed as best as I can tell from my research. So my question is, since I have no original components, ideas on where to go with this thing? The frame isn't perfect, it has some flakes, nicks, scratches here and there, but no dings, dents, etc, paint only. I do have a set of Dura Ace hubs on Mavic wheels, front is mounted and good, but rear hub is 130mm so would require cold setting the back for it to fit. Has braze on down tube shifter mounts. Thoughts on using the Dura Ace rear wheel with an 8 speed setup, which would require cold setting the frame? Or leave it, and maybe go with Suntour Sprint components which are cheaper than the Superbe Pro? The Pro is just out of my league as far as what I'm willing to put into this frameset. I'd like to build it to ride, good size for me, and I'm in midwest with flat terrain and basically zero hills to contend with.