Outstanding Seed Company has the best genetics in the business.  They sell direct if your a larger grower.  You did not say what size a "patch" would be.  Is a patch a small garden, 5 acres, 25 acres?  If you want smaller amounts, Holmes seed is their only retail outlet selling smaller quantities. 

I have grown their pumpkins the last several years.  Worth the money.  Unless you have someone else in your area growing their genetics, you will have standout quality pumpkins to sell.