The engine side of things would be covered by something like a Ford Focus, so your dealer shouldn't have a problem there. For the rest of the car it's pretty straightforward, grease everything that's got a nipple (front suspension and propshaft), oil everything that should move (including the rear suspension leaves) and tighten up everything that shouldn't, change the diff oil, check and adjust the brakes, give it a thorough clean and check over. Morgans are pretty simple cars and any garage with some experienced proper mechanics would know what to do.
