Your Opinions on the WB800

Hi ppls,

iv just purchased my first jet ski and dont know much about them,

I just got a Yamaha 1999 Wave blaster 800 and had a few questions regarding them

1. are they reliable and can take a beating

2. how many mph would i be looking at on the water with it

3. what are some cheap aftermarket upgrades i can do to enchance the ski

4. looking at a custom respray will car paint be fine

5. iv come from motor cross so im keen to wave jump mostly will this model be suitable


thanks people