Hi,
Great ideas here.... (You can tell we love to do this stuff when we can get excited over workbenches!)
One of my kids has my Dad's Sears Roebuck workbench 1943 version, and the drawers and vise from my Grandfather's end bench, 1930 version.
When I was 3 or 4 years old I remember jumping in my parent's bed in their apartment in New Haven. There were two workbenches along the side of the room with lots of cool stuff like amplifiers and radios on them. When my Dad was 78 he moved into a retirement condo place and brought along the 1950 era kitchen cabinets from his house. They were in his bedroom, along the wall, with his tools and old vacuum tubes. When he was 98 and had to move to a assisted room, the kitchen cabinets became the workbench and storage in the barn I built in Vermont.
Now I have a desk with mostly computer/paper stuff, and another built-in desk/electronics workplace in the loft bedroom, where I do small stuff like Arduino, circuit board soldering, things I need my magnifiers for with 76 Year old eyes. Basement workbench with drill press etc. Barn workspace with welder, plasma cutter etc. and car/truck work.
I'm using a table that is made from 30mm thick solid beech as a workbench, which cost me ~60€ for the tabletop (140cm x 70cm) and another 15€ for the legs from IKEA.
When I lived overseas I did a similar IKEA setup.. solid wood top and frame/legs that were designed for some other desktop. IKEA guy finally gave up telling me they did not go together. Shipped it back from Italy and one of my kids has it. Nice solid workbench!
My wife builds Arduino stuff and kids toys on the kitchen table, often using placemats to protect the table.
And THIS: looks pretty good, but I haven't actually used one.
...probably can't beat used kitchen cabinets for the price...
Show us what you end up with!