Both disc and thinner rim are considered but I've got my eye on a set of Alex DX32's going for 25 quid posted at the moment and trying to reuse as many parts as possible out of what I've got lying around to keep costs down.
As for hassle, if my estimated measurements of the booster are correct all it takes is 4 holes drilled and threaded, 4 spacers, and 4 nuts at the bottom for extra security. And it should bolt to the cross bar at the top of the seat stays as well.
Any thoughts as the how likely this plan is to fail on me?