Looking at finally upgrading from my '09 Dragon. Have concluded that a '16 Pro Ayxs will probably be well over my budget limit. Looking at a '13 Pro 163 with 600 miles, mint condition. Not being 100% up on the little changes from '13-'15. Other than the '13 Drive belt issue(changing to a TKI gear down kit anyway) and the driveshaft/clamp fix, anything else that I need to know/worry about/fix? Thanks in advance.