With the fuel breather pipe dont wory it will probably melt up in the windscreen pillar when you weld up the cut, dont stress simply replace the pipe ( auto factors will supply it take a cut off down to size it) you can re route it within the sill cover on the drivers side, its totally simple, and works a treat, it conects up then at the rear of the drivers front arch in the breather canister !! hope it helps, be more carefull of the wires in the drivers foot well, when you weld up the innner wings etc after youve hit them back , if youve rain sensors etc, watch out for the small wires up the front screen pillars, no other real issues,