I've always liked having a scope cart because it puts the scope where I want it while sitting in a chair. Big old carts are too clunky for my new SDS824X HD, but there's an old Tek cart, the 200C, that's just right. There were several in the 200 series and the earlier ones are a bit narrower. I don't know if they'd work, but the 200C is about perfect. It needs a couple mods. I installed a 1' piece of plastic angle in the preexisting holes at the front of the cart to locate the front of the scope. I drilled a couple new holes for a larger aluminum angle at the rear to trap the scope. It rests nicely against the rubber bumpers on the back of the scope. This works well for moderate angles but for extra security I have some 1.5" nylon webbing and quick-release buckles coming from Amazon to put a loop around the scope, similar to the original Tek arrangement, but further forward. The original webbing is over the pivots, too far back for the Siglent. This should allow the scope to be safely tilted to any angle. (That latch pull in the center photo looks like it sticks up, but it's well below the platform.)