tips for how to tune up a nexstar 8?

hi.
i was wondering if there are any tips for how to tune up, (regrease or anything else) an (older) N8? it's almost observing season, and i want to haul out my n8 some more. it's been a couple years honestly.

i've been on haitus and want to return. i see a couple new things have happened in the last few years. things such as skyfi, which would let me (presumably) use my iphone's excellent planitarium apps to drive the n8 over wifi. that's cool. i just want the n8 to be tip top.

any sites you can point me to? or just simple top 3 things you can do to rebuild or tune it up?

Thanks for any advice.
tom

Tom i think there might not be a lot one can do to tune up an N8....but hooking it with the skyfi would be cool!