I did extensive research on LU a couple years ago before buying one and found that ALL after-market places had issues. Warranty, returns, exchanges, refunds you name it they all had bad reviews (SEI was one of the worst). I am sure there are those that have them and haven't had any issues but I don't gamble with my money or when it comes to missing a weigh-in!!
I bought a rebuilt modifies torque-master at a really good price, and I am sure I run it higher on the transom and at much higher RPMs than most. Hadn't had 1 problem with it!
If you can't afford a new OEM lower find a used one at way less than the cost of a new one.
JSRE Modified Merc Promax