I'm out of Tampa fl and I agree from what I've read snu was the only way to go. Still waiting on it to get here tho.
The bag is 100 inches and I do believe it goes past the front beam. Idk how many patches it currently has.
Get in touch with anyone at Gulfport Yacht Club (GYC), as well as MICREEK on here (he's got an N20 rigged the same way you want) who's just up the road from you.
I think there is another N20 perhaps at Clearwater Sail Center (Fondrick)? And one at Sarasota Sail Center (Fleshrocket), so you might actually have a "fleet" within one hour's drive of your location...