Guys,

I'm building an early 80's Nishiki and I just got a Shimano 600EX 6200 Arabesque drivetrain. However, I want to upgrade the wheels to modern 700c and was wondering while I'm at it if I could throw a 10-speed freewheel in and still use my friction downtube shifters and 600EX 6200 FD/RD? So I guess I have some questions:

1. How many gears can I use with the 6200 series drivetrain? I know the specs say the max is 28T but I've read others going higher. If the 28T is true then my options are limited to 6-7 speeds correct?
2. Will I run into chain stay rubbing with a 10-speed freewheel (If possible) after taking my rear spacing from 126 to 130?
3. What freewheel should I use and what chain should I use.
4. Will my front chain rings work with the newer freewheel?
5. Should I go with freewheel or cassette?

Sorry, I'm a newb and this is all a bit confusing. I want the vintage bike with as many gears as possible with newer 700c wheels.

I have modern brakes and will install those and know how to modify the frame/fork to mount them.....

Thanks
Shawn