Bill,
I can get next day delivery from any amount of suppliers with a simple phone call, postage is often free.
With the same phone call they can advise me on differing products to treat specific problem areas or materials.
The world is a small place nowadays, the days of the corner shop and door to door delivery boys is long gone. Just about everywhere has a "virtual shop" on the internet now.
I ordered a parcel from America last Thursday on the internet, it's arrived today, postage cost $18.95 (£9.50)!!
In order to get any reasonable discounts from suppliers you will need to be placing orders of several hundreds of pounds, that's if they allow you to be a distributor!