Thanks for the replies guys, It seems like there's a great deal of trust in Stealth Racing, but they are quite far away from me and it would cost a fair amount just to trailer it up there for a second opinion. As trust in the garage seems to play a big part in people's recommendations, I figure I'll let you guys know that it's at JMR racing. I've used JMR before for suspension work (back in 2007) and I believe that John knows his stuff, but I get the impression that he's a bit of a perfectionist and always starts off by recommending the premium option. I'm a perfectionist as well, but I'm not sure if I can justify the perfectionist price tag 😀
It seems like maybe a top-end rebuild rather than a full rebuild is the way to go,