No need to restore a CB200T unless you really want to, as you can find low mileage minty examples in most major markets for 1000-1500. I don't think you could restore one for less.
I have seen clean runners in my area for 500, so if your budget is in that range, there is another option, perhaps. I don't know what would be available from Honda other than service parts, so you need to find an intact, clean runner.
Parts on Ebay for CB200's are pretty reasonable, especially if your used to chasing CB750 parts!
I really like the CB200, they are a blast to ride. Not a 'fast' bike by any stretch, but they get out of their own way just fine. There is just something about 'little' bikes that makes them fun. You can ride them hard and pretend your Geoff Duke all day long and not get into trouble.
A friend has one, a weather beaten gold '75, and the front brake on his works great. So don't let that put you off.