The GT550 has an incredibly strong engine, is comfortable as you know, and has shaft drive.
Another bonus is you can pick up good used spares for fair prices, so you should be able to leave with a decent selection, although if you keep the GT serviced, it shouldn't let you down.
Keep the oil changes coming ( the GT's low state of tune will help when you have to use cheap car oil )and you should be laughing.
A very good idea to get the valves checked before you go, as the cams have to come off - a time consuming and tricky service. The good news is that once correctly shimmed, the gaps tend to remain solid for thousands of miles, especially if don't go mad on a cold engine.
The gaps are dead easy ( but you'll need time )to check, so you can just wait for the dealer ( if you can't do this yourself ) when necessary.