I can also recommend Perranwell Garage. Last year I had a slow puncture, needed a replacement valve, and they not only sorted it out but at a very reasonable cost. Great people to deal with as well.
I would also second the fitting of 65 section tyres rather than 60. Might not seem like much but the difference on my previous Morgan, also a 2014 Plus 4, was noticeable in that where it used to scrape over certain speed bumps before it went over without scraping with the replacement tyres. That car did seem to have very low ground clearance though for some reason. I didn't notice any adverse effects on handling etc but just be aware that as it is a change of diameter it will affect the speed reading, from memory about 3% but could be wrong. Actually made my speedometer more accurate!
