Finally have pics to show of the interior of my enclosed. The side ramp I ordered, to me, already is a MUST have for my WB and 21" I plan to Fastrap down my WB. Any suggestions for the Z - should I go Fastraps OR Prolocker? My gut feeling is that Fastraps are kind of a pain to use on a large wheeled Z but need opinions. Also, how do you guys fasten down a 21"? Thx!