In the US it's a crap shoot. You can have excellent, knowledgeable, helpful dealers like earthtools, or ones on the opposite end like my local dealer who you don't want to touch your machine. My local dealer delivered a new damaged implement to me. I contacted BCS USA and they were very responsive and came out and replaced the implement. Excellent service from BCS USA.
Now you're stuck. Either live with it or fix it.
Agree that the prices are insane but try buying all the machines separately. And getting this type of equipment that actually works and is of lasting quality is difficult. I have a 2000 square foot fenced garden and I couldn't possibly use a 4 wheel tractor. I have bought a number of implements and made a number of implements and can say this is the most useful thing I can imagine. I couldn't possibly live the way I do without it. It gets constant use. Soil prep, cultivation, pulling a trailer around the woods, moving heavy propane tanks with my forklift attachment, sickle bar and bush hog work, snow moving. Couldn't live without mine.
In hindsight I would have bought one of the bigger models to get the bigger wheels. I'm not sure about the powersafe. On my 739 it has worked flawlessly for 11 years now. Super convenient if you're constantly walking away from the tractor but the brake is annoying.