Surprisingly very few bar stools from the mid-century were designed for the home. They were more likely to have been designed for cafes, pubs etc etc. The mid-century example shown is by Erik Buch and originates from Denmark.

my inexperienced daughter made a very good L shaped kitchen from standard flat pac cabinets, including counters. It wasn't as simple as advertised but at a saving of about $10,000 over a custom made kitchens was well worth the effort. Either way you still need a plumber, electrician, sink, taps, stove, rangehood etc etc I suggest you study online Kitchen planners (eg Bunnings and Ikea both have them) and confirm the stone & other trades because some can't find time for private customers so make sure you check before you commit to DIY...good luck with it

It happens because houzz recycles very old posts into the daily feed. It's a totally useless feature of the site and serves only to cover up the fact they are lacking in daily content additions.

Do you want cheap? Or do you want good design? It is hard to make generalistaions but a kitchen pro company will probably have a large overhead of a showroom with a number of impressive display kitchens and an in-house designer/salesperson, which will be incorporated into their pricing structure. The builder's cabintemaker won't have this overhead, but then probably isn't up to speed with the latest design trends, and will leave the choice of finishes up to you. Yes, your builder will put a percentage mark-up on his cabinetmaker as he still has to co-ordinate the other trades with the installation of your kitchen, such as the plumber, sparky, tiler etc. If it is his usual cabinetmaker then the process should be smoother and faster than bringing in a kitchen pro company who he doesn't know. If you pay to get your kitchen designed by a professional you can then compare prices from different cabinetmakers. As your new kitchen should last twenty years or so, you should be thinking about the value of good design rather than how cheap you can get it for.