In reply to Anaflactic:
Not to sound flippant but best advice, dont do your main market research on UKClimbing.
Its nice to have a wall for climbers but its not a solid business plan. Consider things like local student population, new climbers or those not yet partaking in climbing. And then schools / groups that will be likely to fill the centre during Monday- Friday daytime's.
Also road links and public transport as well as size of your car park can be really important.
If its about a profitable business then a well marketed Clip & Climb will continuously bring in cash as will running back to back parties at the weekend.
If you can have a centre big enough to encompass everything in harmony then would be fairly solid all-round.
Routes sound good but take more time and money to regularly reset.
Autobelays i would say are fairly essential in a modern wall.
But as a climber. Im cheap. If its dry in summer i will head outside then moan in winter when the prices have slightly increased to cover the quiet periods.
So again not trying to put you off but think about it paying your bills not a cool place for climbers to occasionally hang out.