I bought a flogged RPM and the above is what I did and have had no problems at all but I have not really dropped tyhe kite in any major waves yet.
Takes a while to cut each piece of sticky back dacron to the exact width of each panel but you have to do it not to distort the arch.I used tent seem glue along the overlap of dacron to keep it from lifting and it worked like a charm. It added above 100 to 150 grams to the kite and cost about 20 buck for 1m of sticky back dacron.
It would not be cost effectiove to get a kite repairer to repair it.
Cheers
Rich