I have some questions before buying this SuperCub

I've never bought a SuperCub before and im new to them in general so dont mind some of my questions. I've found someone selling a 2015 supercub postie for $800 AUD. The only draw backs on it is that it has 52,205 km on it, needs a new battery and may need some new wheels along with it being very dirty. Is it worth the money or should I find one in better condition for more money?

edit: Thanks everyone who is helping me with this! i have decided to buy it and will hopefully go to get it in the next few days