Current Projects chat and miscellany

Quick question regarding hubs: I have an old mtb frame that I'm going to build up as a tourer for the summer. It's 130 o.l.d and I was going to use an old stx 7 speed hub, but thinking about it, is there any reason I couldn't use a 130 wide road hub and go 8 speed, and is there any other reasons for going one way or the other (durability / sealing etc.)

I think both should work but just looking for your expert opinions.

Also, some one correct me if I'm wrong, but mtb rear hubs have an O.L.D of 135mm, while road hubs are 130mm.