question about website policy on group buys?

there's a company local to me that makes custom billet wheel adapters. I had shot them a picture of what I had designed up for the rear of my duster to convert it from 5x4 to 5x4.5. the design is hubcentric to the car and hubcentric to the wheel. the price per pair comes down significantly with quantity. I was curious if it's ok to post in the forums to gauge interest and potentially organize a group buy on an item like this....