[setasai]

Sounds fun to me... for carpenters theres the sawdustshop and for more advanced metal work theres techshop. Both have simlar ideas to what you're suggesting. Basically they have tools and space and you pay a membership fee to use them but you bring your own or buy the raw materials.

Given how often motorcycle owners need to and like to work on their bikes but are limited by space, I say this is a fantastic idea. Lots of details and policies to work out though.