If you are looking for a handy spot for your U1 with room for drying boxes. I use a Luxor Multipurpose Utility Cart with 2 Shelf - Black Product Dimensions 18"D x 24"W x 33.25"H. You can find them on Amazon for less than $100. I have my A350 on a bigger one. Make a simple frame from 2x2s and cut some plywood or particle board for shelves.
Easy to move around and I find it very stable. It does shake a little when printing but have not had any noticeable affects on the prints even with the vibration compensation off.
