Welcome to the Forum
Sounds like you have a great build underway.
There will be a lot of help available to you here on the Forum.
As for air Conditioning? There has been a lot of discussion to date.
But there does not seem to be the perfect solution for Teardrops????
Or at least I have not yet been able to find it......but there are some threads dedicated to this!
And by all means post pictures as soon as you are able. Forum users LOVE photos!
Good Roads
Brian & Sandi