Don't be scared of the 40'. It will go anywhere that a 37' will go and the difference in handling is negligible. The Momentum is a very well build unit. You didn't mention how old it is, but with a little bit of searching, the 355 can be bought fully optioned for just a few thousand more. My only concern would be that it has next to no warranty left, has not been used enough to work out the bugs (if any) and you would be paying what is basically the price of a brand new one.
As a late model Fuzion owner, I will tell you that I wish the Momentum had been on the market when I bought mine almost 2 years ago. Yes the price is significantly higher than Fuzion and Raptors, but in my opinion the quality of the build, quality of products used and perks you can't get in the Fuzion or Raptor line make it worth the price. My advice would be don't make the classic toy hauler mistake by buying what you think you can afford then wanting something better in a year or two and end up taking a big hit on the upgrade. It is cheaper to go big the first time!
Texas to Louisiana can be a 20 minute drive or a 10 hour drive. For the right price, I wouldn't think twice about driving 8-10 hours to get the trailer I want. I actually did drive 8 hours to get our Fuzion and still saved over $4,000 after all costs were considered. It was also a trip that my son and I will never forget.
