Import request for Tents Bulgaria

I am a Bulgarian importer of tents. I am writing to you in regard to my interest in the tents you produce. I am looking for 2000 pcs high-quality single and 2800 pcs double tents from polyester. Could you give me more information about:
-the standard tents you produce
-whether you can produce single(2people) and double tents(4 people) size 210х140 and 320x210cm; waterproof
-what is the price per unit
-what are the delivery terms
-is there a minimum quantity for order
-what are the payment terms