I had a '68 Firebird convertible with a '70 455 and 4-speed when I was in high school (class of '80) I had it painted with acrylic enamel at the local MAACO and the result was as good as a factory GM job, which is to say it looked shiny and smooth with minimal orange peel. NOW THE CAVEAT: Before I took the car in, I removed EVERYTHING that I didn't want paint on. This includes the door locks, all trim, marker lights, taillights, window seals, grilles, EVERYTHING. ALSO: I sanded and filled little scratches, etc, for weeks. That car was as perfectly smooth as I could get it at age 16 BEFORE I took it to the paint shop. The moral here is: If you want to use MAACO, they can spray on a smooth paint job if you deliver them a well-prepped car with ALL trim (and preferably all glass) removed. If you expect to simply drop off your car on the way home from the office and pick it up in a few days, leaving all the prep work to the shop, you will pay about $1500.00 for a sloppy prep/masking job, and will spend weeks removing overspray from your tires, trim, exhaust pipe, etc. If you don't mind doing the dirty work yourself, you CAN get a perfectly good, durable, guaranteed, daily-driver paint job at MAACO.
Unless you have Peter Gregg's orogonal CSL with documentation to prove it's pedigree, you'd be a fool to pay a Ferrari-caliber restoration shop $10,000 to repaint an everyday coupe that might bring $20,000 on it's best day at resale time. The exception here is if you really love the car and plan to keep it forever. Just my opinions and experiences.
Colin