I invoke the Dammed if you do Dammed if you don't, clause when it comes to legality. You can still get stickered by dumb arse cops even if you have all legal parts on your car so...why bother. Go the Corsa:D
I used M5 with that Eclipse hand tool with no trouble and that with stainless nutserts. Like I said before, you can make yourself a tool for larger stuff pretty easy. Then you use a ratchet handle for heapsa grunt.
You can also get the larger ones done with the Eclipse tool by doing the process...
Nope just the everyday price. I crunched the numbers and freight was an absolute killer plus the fact that customs start slugging you when it's that much money. Of course I then had to spend another $300 on a tank that fits. i suppose I can sell off the supplied tank but they really should...