Thanks guys 
sbtwister said:The quads look really great - nice job. I'm jealous.
It must have been a fun day doing this mod with all the right tools, and the Master at work! Well done.
Machine monkey said:It's tricky and a job not to be rushed! Basically use the existing cut out to make a template then reverse it stick it on in the correct place and cut it out. It's a job I won't do for someone!
An m bumper is the easiest option but adds a lot of cost. It all depends on budget.
hammer and chisel no!!!!