Wow, some fantastic and very interesting responses there guys! thank you.
I am doing a massive amout of research now and looking into the logistics of it.
Basically I moarn the loss of decent back street shops, where they stock good second hand kit, well set-up kit, loads of spares and people on hand for repairs etc.
Also, there is a room at the rear which would lend itself for teaching rooms or a small recording studio.
Friendly is important too, people want to be sold to, to enjoy the whole experience, in my opinion Denmark Street deserves to fail after I visited it a few months ago. With people who plainly didnt want to help or thought they were rock stars.
It would be pointless to compete on the cheap Stagg etc ranges, this market is saturated, I would rather find cheap interesting second hand instruments.
I am thinking of aiming it at bands primarily, offering instrument hire too.
Early days yet......
Will keep you posted