Hi, here are my answers.
1) Where do you feel in the most convenient place for the indictors to be located?
• Under seat
-but at the extreme back of the bike if possible i.e. at the back of a rear pannier-rack.
2) Where do you feel would be the best place for the switch to be located?
-on the handle bars
3) Would you prefer wires connecting the indicators or wireless for example blue tooth?
-Wired - reliability is more important. This way you only need a single battery pack, shich is less fuss,
4) What do you think would be the best method of attaching the inidators to the bike?
-can you surguest any other clips?
-Use a plastic p-clip. Like a Cateye light bracket.
http://www.wiggle.co.uk/ProductDetail.aspx?Cat=cycle&ProdID=5300003973&n=Cateye%20Rear%20Light%20Clamp I would like the indicators permanently fitted to the bike. i.e. not removable when you park up.
5)How much would you be will ing to pay for indicators for your bike?
-£15-£19
6)Do you think it would be a good idea to have a brake light with the rear indictators?
-Yes
7)Where is the best place for the front indicators to be located
-handle bars - high-up and wide apart
8)do you think indicators are a good idea?
-yes
I think you might get some useful information by reviewing the strengths and weaknesses of the C-Tronic "B-Seen 101" light set (discontinued):
http://www.kinetics.org.uk/cgi-bin/criticalreviews.pl?showreview=BSeen&show=newest¤tReview=0good luck.