really seems like you could just make one out of wood, bolts and gas pipe and fittings. The actual clamp to hold the bike would be a tougher source. But just a sturdy base with a heavy (metal) sturdy pipe wouldn't be difficult to fabricate. I mean $2,000. + for a stand to hold a bike just seems sort of nuts.... to me. you could build a wide box with 2x4's (pressured treated for more weight), laid out flat on the floor. Then some 3x4 pressure treated plywood (again because it's heavier and stronger) laid and glued/screwed on top as the stage of the box. So basically a stage that's a couple inches off the ground. Use a pipe flange and bolt it to the plywood, reinforce the underside of the flange with more wood or even a flat piece of metal if you want so there's no chance of tear-out.
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then you just need some heavy gas pipe, probably 1 1/4" as the Riser,..maybe going to a 'T',.. you could have pipe and a 90 and 'weight' on one side of the 'T' as a counterweight to the bike, then the other side of the 'T' you'd need a bit of pipe and some type of clamp.
I mean that's just a crude 'off the top of my head' idea, but for $2,000.+ bucks I'd probably catry really hard to just build one myself for a couple hundred bucks. You just need to account and build for sturdiness and weight distribution. So you'd want a somewhat wide base so it's hard to tip over, and some kind of counterweight to offset the weight of the bike. And I'd make sure the pipe is perfectly in the center of the base.