I wouldn't be concerned. That's low hours for a 10 year old boat.
2008 still has sprinkler valve ballast (I think). Not a bad thing, they just fill slower, and you might need to replace some of the valves if they're stuck open. This is something I'd test on your water test.
Other than that, there's really not any major issues with them. The 325 is a tried and true motor used in many boats under different names. I've got ~800 hours on mine and it's been great. Given the condition of the exterior, I'd expect that the owner took care of the internals as well. The person I bought mine from was the opposite, the boat was trashed and dirty on the outside, and I had no idea what to expect when spring came around, but she fired up and runs like a champ... even with what was likely less than stellar maintenance history.
If it drives well on your water test, without vibrations and no obvious issues, I wouldn't hesitate at all. Congrats on the purchase!
-Mike
2006 Supra Sunsport 20V