Hiya
Not plumb,not pretty but fixed,bolted and level.Cost was a few welding rods, 2 masonry drill bits, a couple of Rawlbolts and a tenner for a bit of plate.
Dug out of a field

chopped and shopped

I gave up on bolting it to the floor,so I dropped some studding in the rawlbolt holes and fixed it with some molten lead.
I also dropped a paving slab in the bottom to give it a bit of extra mass,hopefully to dampen any wobbles that may occur.
Need some clamps and Tnuts now!!!!
MARK