Glider from Canada

All,

There is an L33 on Wings and Wheels that interests me. It is in Ottawa.

I'd like to have a mechanic look at it for me. Do you know of anyone in the Vermont, New Hampshire, or close part(s) of New York who you would recommend?

I know I'll need an export certificate of airworthiness. I know I'll need an annual. I know I'll need to get an N-number. I know I'll need to get the FAA or a DAR for an airworthiness certificate.

What I don't know:

Where do I get a certificate(?) for the factory trailer for the DOT?

What customs form(s) do I need?

The "I know..." items above came from searching RAS. I'm pretty sure I've previously seen the others, but now can't find them.

Advice is always welcome. Thanks!

Terry