you can purchase it cheap at lots of places. you can also get cayenne powder in the food store in the spice section.

how large of a bulk do you think you need. My guess is that online you can find it for about $5 to $10 a pound all ground up. a google search might work. I would try chile powder.

5 pounds for $15.50 much lower priced than my guess.

http://www.bulkfoods.com/search_results.asp?txtsearchParamCat=37&txtsearchParamType=ALL&txtsearchParamMan=ALL&txtsearchParamVen=ALL&txtFromSearch=fromSearch&txtsearchParamTxt=4238

but this same place has other chile powders and you might want to mix some up for a different taste.

http://www.bulkfoods.com/spices.asp?referer=goredpep3-1

this was the first to come up on the google search. you might find others with a better deal.

I did a cayenne powder search.

Thanks for the info. I am really looking for "fresh", as I run them through a juicer, extract the juice then mix that with the vinegar and salt. I dont think the outcome would be the same if I used the powder?