I am not too experienced in building, but I once had to strip a frame completely as it had to go in for powdercoat, and had about 20 mins to do so while also cooking dinner.
I was surprised how easy it was. Bike was fully stripped and I was left with just a frame by the time dinner was done. Also very few tools needed! The room did look like a bomb had hit it mind you….clearing up was another thing.
If you have the (very few) tools ready, stripping a mtb frame from all its parts hardly takes any time at all, took a girl no more than 20 mins whilst cooking a nice bolognese!
Putting it back together is another thing.. Still 7 hours for an experienced mechanic sounds way over the top! Mind you, if it is a man, they like to make a meal of things! 😉
Simone