Had a airdog. Burn up on me.
Fass pump only is $450.00 whole thing is ~600.00 range.
I'm still less than $400.00 into my fuel supply..as One failed I warranty then applied towards better pump..
With exception of the air dog raptor pretty much ate that $250.00
plus I have substantially longer service interval than a similar fass setup.. and easier to bypass if failed while still maintaining filtration
$400 in your set up isn't bad, but how much down time and wrench time have you had? I've got a customer Lmm with over 100k on his fass 150 in the last couple years and countless others with no issues.
Not knocking just wondering