I don't know how well known this is by now, but just in case, I'll add it.
The quality of your speakers is not affected by the cable from your amp.
The connectors are more important in terms of physical contact, but almost any new connector will do. The wire itself makes no difference. Pay as much as you want but the sound will not be any different than if you used metal coat hanger wire.
I'm not saying it's the finest interior ever, but I quite like it. I would rent it if it came up.
The thing with the cupboards or any furniture or fittings is, to make them like that you have to know how to make normal stuff properly.
I've had to deal with poorly designed, made and fitted things, sometimes all at once, far too many times. That stuff may not be to taste but it will operate and function properly.
I like it!