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Hi, it's me. May I make a suggestion concerning the top of the bench. This may take some $$ so be prepared but in will insure a flat surface, glue and paint of all kinds comes up with a single edge razor blade and lasts forever provided you don't drop bowling balls on it. A sheet of glass. On my work bench which has your standard cabinets and drawers underneath I have laid a 3/16"x2.5ft.x10ft. sheet of glass on top of my work bench. Granted it wasn't cheap and I'm not expecting you to go out and grab something this size but a scaled down version might be just the ticket. I've built a number of 1/5th scale models and now that 1/9th scale B-17 directly on this glass surface. In fact you'll see later on how I'll do this with the horizontal tail section, rudder, and one outer wing panel literally tack glued to the surface.
Yep. Even simpler, go to the local DIY store, and get a length of Conti Board (melamine covered MDF, probably different brand names in the USA) to whatever size you want, and a couple of brackets and some 2 x2 timber. Make the table the size you want, screw it to the wall on the brackets and support it with legs made from the timber. This way, you could have an 'L' shape work space, 'U' shaped, any shape, any size, for less than the price of a cheap desk or table. And it'll clean easy too. That's what I did in the spare room in one house, and added shelving of various depths above for paints, tools etc, with models on shelves on another wall.