That's what I love about artists -- nothing is impossible. In my next life I want to be an artist with the competence to build the things I dream up.
My ideas are usually met with sighs and eye- rolls from Mr. B and the few others I know who I think that the competence to carry them out. But usually the ideas are seen as a challenge and they're secretly worked on.
Back when I had the studio I found this shop in the industrial area that sold "retail supplies". One of the men who worked there was so cool. I would go in and say "I need a thing... this big.... that will do this... and looks like that... and will do this specific thing for me...." and he would sigh and roll his eyes and and tell me they didn't have anything like that and few weeks later he'd call me down to have a look at the perfect thing he'd made for me. He'd charge me for the parts he used to make it.
Mr. B is like that too. But since we're married I have to endure two weeks of sighs and eye rolls and wishing I'd never had a single idea in my life.
But back to your comment. I have no doubt that Mr. B could build it but it would cost me double with experimentation.
But I would probably love it double.