advice on major service

I am planning on getting a major service done on the ’89 Mondial t cab in the fall when the leaves are down and winter has not hit yet. There are no known issues, but it will have about 50,000 miles by then. I am a firm believer in preventive maintenance. What are reasonable prices for a major service for this vehicle?

Parts: sometimes shops charge a reasonable markup, but it seems that many shops now mark up parts 2 to 4 times. Therefore, I was thinking of supplying my own parts. So this needs to be acceptable to the shop. What parts should be changed during the major?

Areas: as a consultant I travel very much. I am willing to go extra (even very long) distances for a good shop with reasonable prices. Salt Lake City and Las Vegas are easy for me. In addition, I might be back on the East Coast, in Texas, or in Scottsdale/Phoenix. CA is a distant possibility.

Dealers: very mixed emotions in this area. I have had both good and bad experiences with dealers. A Ferrari is such a unique vehicle that a dealer might be best especially since their computer interface is unique. However, my experience with the Dodge Dealer in SLC explains my reluctance. When I worked at the top secret labs at Dugway Proving Grounds, I had a Dodge van along with other vehicles. I drove the 2 hours each way to the Dodge Dealer for a tune up, change the oils in the axles, and other preventive maintenance. Afterward I noticed oil on the driveway of the home in Dugway and it was coming from the rear axle. So I got another gasket (noticed that the dealer had charged me 4 times this cost for a similar gasket), sealant, and extra oil. Put it on the lift at the auto hobby shop. Surprise – there was no gasket; the dealer had put just a little sealant there, but charged me time and materials for putting a gasket on. Never been back to that dealer again. Sold that van when it had 300,000 miles on it – second engine, but original transmission. The second engine was a used one from a junk yard in Hawaii – US Government paid for shipping the van to and from Hawaii. So very mixed emotions about dealers, but will not rule out a very good one.

Independent shops: have had best experiences with shops that people have recommended. However, Ferraris are such rare vehicles and the computer interface is unique, so not for sure if this is a valid option.

Doing it myself: I am more intellectual than mechanical. However, I am a fast learner and an exacting worker, so things normally turn out well. My main company is in the process of buying an aircraft hanger in Las Vegas, NV or on the coast in Florence, OR (have interests in both places). So there would be space for a lift. Is doing it oneself practical?

What are your recommendations?
You can either post them or email them to me.

Thanks in advance!