I bought an OEM brushguard from TimGCo on the forums here, and literally had it installed in 30 mins (with a helper!).
I didn't have the rubber 'bumpers' either, so I used some Loctite Instant Gasket. I don't know if I should've used it or not, it's just what I had laying around, and it seems to have worked fine (it's been on for 3 months w/o problems).
