Leasing on someone else’s authority.

Hello,
My New Freightliner just arrived last Friday,
I (haven’t prepared) for my own authority yet.

Then I designed to work under someone’s Authority that take % and provide all kind of paperworks I needed. (Just wanna make it easier while I’m waiting for my own authority to be done.)

**I have my EIN and LLC already **
(That’s all I have for now)

So this is what I understand..
-I must use their DOT#,MC#
-They will register the truck IRP using their DOT# .
-will get most permit papers the truck needs.
-and provide the ELD


Priory to arrival to get the truck out from
the yard ,they(dealership) required
1.2290 (Heavy vehicles use tax)
2. Certificate of insurance.

My questions..
In this case can I get my own 2290?
-using my EIN and my LLC to apply for the 2290?
or
I must apply 2290 under the leasing on company’s name ,since I’m going to run under their Authority?

Thank you!