Adam,
Lake Mountain.... I just go up and set up in the car park of the ski resort... not seen another person anytime I have been there... well... one of my kids came with me one time. They leave the gates open all the time in the summer months... once snow starts they lock the gates at night to stop people going up and getting stuck.
T-Adapters?? Try a telescope shop... I usuall shop at
www.bintel.com.au and got my t-adapters, filters, eye-pieces, powermate... etc there. I think they have half my years wages. There is another scope shop called Ozscopes or something, but I have not checked that one out yet.
My scope is a Meade 8" LX90... it's in my signature block. A lot of people on here do that, so you can generally see what they are using.
Geoff.