Buying a Rhino

I am looking at two Rhinos
1) 2007 450 with 1600 miles they are asking $6,000
2) 2008 800 with 1600 miles they are asking $6800

They both have very few options; also I am in Canada that is why the prices are higher.

I will basically use it for booting around the cottage, trails once a while but generally pretty ligh duty.

Which one is the better deal. The 2008 price is firm while the 2007 says he will negotiate.

If go with the 2007 450 what is the correct diff I should pay. i.e. should it be $2,000 less than 2008 700 to be a good deal

Any advice appreciated

Thanks