eperry, $2500 for complete 5.3 and tranny is VERY high priced. I could have got 6.0l for about $2200 with 30k miles on it... in CA(my 6.0l without tranny was around $1500ish)

The place was offering 5.3l's for around $1500 complete with tranny and 30kish miles
Definately shop around and remember that shipping an engine is "only" $300-$400
On BTB parts, I'd recommend looking somewhere else. The output you speak of is probably an Advanced Adapters unit that has been marked up