Hello OP, are you basing your build on 26in wheels? I have some wheels you can have – 317rims, formula hubs, 135 rear, both QR – if you want them you can have them for the cost of postage (or if you can collect from Manchester then happy days).
The rear hub needs a service, or replacement if it’s really bad (a formula replacement should be fairly cheap to swap cos you could even reuse spokes to keep the costs right down).
thinking about it I can slap some tyres on them as well to get you started, and a set of wellgo flats – if it gets a lad on a bike then it’s all good by me 🙂