Is that £60-£90 for just the rear or for a pair?
Assuming just for the rear since thats all your breaking, merlincycles.co.uk can do XT hub, ex721 CD (dark grey coating) inc rim tape for £64 + postage and that should last a good long time. I'm still riding on a 521 (same rim just older) that i cracked about 5 years ago and its invinsible!!
You'd be lucky to get Hope hubs within your budget and would probably sacrifice a good build. I've had issues with Deore and LX hubs literally falling apart though i may just be unlucky (i'm not a hard rider but have had the bonded internal pieces come apart or the soft bearing races crack!!) so would try and get XT or even better, in my opinion, see if someone can build a rim on an old steel hub like an Acera X like I use, its so much better than all the new alloy stuff and has well outlasted the other shimano hubs i have tried and with less maintenance.
As mentioned before the build is pretty much the most important thing and i know for a fact merlin build fantastic wheels - it whats they're best known for.
Stif also build excellent wheels but are quite pricey, you'd probably pay another tenner from them for the same wheel.