I've got a Giant OCR that I got for £100 5 or 6 years ago so it doesn't owe me anything. It's got 7 speed Sora on it and a screw on freehub(?)
The drivetrain is past it's best but 7 speed mechs seem to no longer available.
My thinking is that I could stick a 10 speed setup on it but that's going to cost me a new rear wheel, cassette, chain, pair of mechs, brake levers/shifters and cables.
Am I missing an obvious and cost effective route to getting it roadworthy again? (don't need another single speed, got a roadrat) or am I best getting the ubiquitous £1000 roadbike on Cycle to Work?