Anyone Snowmobile? Need advice.

[67rsconvert]

Thinking of picking up a used sled for my folks cabin in Idaho. My dad has a RMK700 or 800 and I like it but would like something that is a little more comfortable and hopefully still as quick. Most riding is groomed with some stretches of high bumps(2-3ft) so I need something that can soak those bumps/jumps up and that has reverse. I don't think a 500-650cc sled will fit the bill for me speed wise. I'll only be riding about 2 weeks per year.

Thanks for any advice!