Join Date: Oct 2007
Location: West Yorkshire, United Kingdom
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If you have no experiance with fixing bikes, getting a old one with a lot on known issues is not the best place to start, from all you have listed you want to replace, the crank and shifters are the 2 most expensive bits on a road bike after the frame / forks, you may find the cost of replacing these is more than a new / nearly new bike.
Hubs, these will be 126mm, obsolete as road hubs are now 130mm, the frame can be cold set to take newer hubs, the biggest problem with be the suntour are freewheel, all Shimano and SRAM are Freehubs, and use cassettes.
Nothing wrong with Weinmann rims, but may be 27", current now is 700c.
Think you may find it easier to buy a current bike, an 80's bike will also have compatibility issues with the headset, being 1", the gearing, most bikes are now at least 9 speed, with 10 being most common.
For compatibility, this used to be easy, but now the same manufactures groupsets are not always compatiable one year to the next, so very hard to know without knowing what you were looking at.
You can still get parts for older bikes, but you will have to hunt for them, it's easier to have a current bike where any part required can be purchased off the shelf than having to hunt on ebay or a HTF part