Welcome to IIS and I hope you have a blast with the “soon-to-arrive” LX90. I’m not sure if I would be as brave as you in announcing its arrival, as it is a well known fact that the receipt, not necessarily the purchase of, any new equipment can bring nights of cloudy skies!
Is it an 8" or 10" 'scope? I've never owned or operated a Meade 'scope so cannot provide any advice on the topics you enquired about, but I'm sure someone will pipe up soon.
Cheers
Dennis