yeh, your not going to find many, if any, LFS that will be willing to share their distributor/wholesale lists. its bad business.
youd be hard pressed to find any kind of retail store that is competitive, share those kinds of lists for you.
your best bet is to do your own research and hit google long and hard.
and when you do find them, dont expect them to share any prices with you until you provide them with your business license.