Do check out some of the newer cheaper Sage reels , there is a die cast 2200 series 10wt reel that is put together with a reddington predator rod , with a rio fly line that is retailing for about $600.00 inclusive? . I am not sure of the reel on its own , and I have not tested one of these yet myself but I am willing to say I am sure you would get your moneys worth. Sage would not sell a 10 wt reel if it's drag was not capable. And with the fish you have caught on reels with next to no drag , why not just wrap the line around your hand and put the money into a sweet rod and fly line  

If you want I have a Lamson Guru (never used, long story) that I wanted to list on trademe, but it might be a bit small for you as it's a 3.

Thanks all, Matto, I'll look at the Sage. I agree about the drag. I've gotten on fine with virtually no drag at all for snaps, so I probably shouldn't be too pernickety.