try to get a few qoutes from a good panel beaters around your area. Normally panel beater that have good cars (Bms, mercs ETC) will be a good indication or those used by the dealers(Bmws, mercs ETC)
Offer them a cash job which will be much cheaper. My panel charge me for a fender $300 the last time i did respraying. Dont forget though they have to take off the bumpers that might add abit on the labor. But then if you a skill full enough take it off yourself to save abit on the labor