It's worth sessioning. There are more than 4 ways to get to the bottom but I think there are 4 main tracks. But there are loads of litle bits and different ways to go. The longest part of the push is from the bottom to the fire road. After that it's not too bad.
Wonderland is getting wider in parts, which is giving more line options. And people want the new line that is going in will be a wider, multiple line race track. Sounds great in theory, but harder in practice at a place like Cannock with not a lot of roots and rocks...so we'll see what they come up with on Sunday!
Helicoils are pretty easy to do. I've done 3 now. And the 1st one was on a nearly new set of 08 888. Drill, tap and insert. When I get in from work I'll check to see how the drill bit for it goes through the hole for an M6 bolt.
Get your money back, don't brother faffing about with damaging the frame as then you have no leg to stand on if you do want the money back.
In theory you can take him to court if he refuses to refund you as it was sold in an unuasable state, and not described as such. Take a trip down to your local Citizens Advice Bearu (sp..) and they'll help you out. I'm sure the threat of a beatdown in court would convince him that giving your moneyback is the right thing to do.