I'm planning a g/b with some killer prices! I'll be offering them primered or painted. Painting will only be an extra $20 over the regular cost.
The prices are:
for fewer than 10 people: $130 per set
for 10 people or more: $125 per set
for 20 people or more: $110 per set
for 30 people or more: $100 per set
And, i don't know for sure yet (haven't played around with them yet) but they should just fit over the original fabric with a nice tight fit, and no adhesive necessary.