the question to be asked is:

where would these regular customers buy bitcoins?

i, just like you am in the UK and unlike the USA, bitcoin is harder to get unless you already know about it and know where to look. so unless you can find a way to get people to EASILY (i truly emphasise that word) get bitcoins. most would not bother.

and if you do come up with a plan to make it clean and easy for the uninitiated, you should contact local media to give you a bit of free press.

lastly, what is your business as a few of us may want to use our bitcoins with you