Also, be aware that, if you choose a Montana LLC, you'll be required to register the vehicle in Montana. Here's an excerpt from Montana's vehicle registration fee schedule:
(7) (a) Except as provided in subsection (7)(c), the annual registration fee for a motor home, based on the age of the motor home, is as follows:
(i) less than 2 years old, $282.50;
(ii) 2 years old and less than 5 years old, $224.25;
(iii) 5 years old and less than 8 years old, $132.50; and
(iv) 8 years old and older, $97.50.
(b) The owner of a motor home that is 11 years old or older and that is subject to the registration fee under this section may permanently register the motor home upon payment of:
(i) a one-time registration fee of $237.50;
(ii) unless a new set of license plates is being issued, an insurance verification fee of $5, which must be deposited in the account established under 61-6-158;
(iii) if applicable, five times the renewal fees for personalized license plates under 61-3-406; and
(iv) if applicable, the donation fee for a generic specialty license plate under 61-3-480 or a collegiate license plate under 61-3-465.
(c) For a motor home with a manufacturer's suggested retail price of more than $300,000 that is 10 years old or less, the annual registration fee is the amount provided in subsection (7)(a) plus $800.
As I read that, if your coach has a MSRP of more than $300K, your registration fees will add up.
Year 1 - $282.50 + $800
Year 2 - $282.50 + $800
Year 3 - $224.25 + $800
Year 4 - $224.25 + $800
Year 4 - $224.25 + $800
In the first 5 years, your Montana vehicle registration fees will be more than $5k, plus the cost of establishing the LLC. Those costs will diminish the monetary savings derived from the LLC purchase.
Just my opinion.
I'm not a lawyer and I've never turned in a tax cheat (nor have I cheated on my taxes).
Take care,
Stu