Hi Tim,
I bought my Provent through Stu at Murchison Products, along with the suspension lift, 3" exhaust, steel front bash plate & GDE Flash tune.
Only thing to go now is a snorkel and rock rails.......still working on the wife....
I had my mechanic fit the Provent. He didn't seem to have too much trouble fitting it. The drain hose comes out next to the front mudflap and hangs down about 40mm. I either park somewhere on gravel etc or stick a can under it to drain it. Note: you must fit a brass ball valve tap.
Very happy how the Jeep goes and tows with the mods. I'm mainly into torque for towing but have cracked the odd smile when the tyres have screeched from take off at the lights
Re: Filter. I would go for the AFE rather than the K & N. Fitted me one of those as well.
Cheers, Craig