Decent bike rack for inside a van

Evening. I need a 3-bike floor rack like the one here to screw to the floor of my van, but I cant find one that will take decent width tyres or is going to be compatible with discs wheels, as they’re all too high and the top of the wheel holders knocks the discs. I carry 2 or 3 bikes all the time and they’re in and out of the van constantly, so loading them has to be fast and easy.

Anyone on here found anything fit for purpose, or other suggestions?

http://www.bogley.com/forum/showthread.php?38976-PVC-Bike-Rack

We’ve used a company called Kestrel Engineering for our shop’s wheelstands, may be worth a Google. For my own van, i’ve made a H shape that sits on the floor, with uprights that strap to the seatubes via adjustable blocks(all from 1″ square steel tubes), worked fine until some bell-end threw oversized wheels into the mix and the uprights then positioned the bikes too far back to close the door (easily fixed, no lift to the trail if you’ve got silly wheels).

Made this for my mates van (1 euro pallet)