I got a hold of a surplus solid entry door = cheap. lagged a 2X4 into the wall at proper height & bolted horizontal door to top of that. 2X 4X4s for legs up front. Angle brackets hold 4X4s to door bottom & to the floor = rock solid.
A old dresser w/many drawers fits just right under bench for lots of storage & an old bed headboard on top gives me lots of shevling.
Ugly as hell & total functional. Don't have more than $50 in the whole shebang.