Long-off 340 build

all the trouble your going thru to build a motor with aluminum heads, roller cam, etc, on a 340, I'm curious as to why not going with a 408 crate motor? May be money ahead with all the little stuff, like rockers, etc, and still have a warranty. Blueprint Engines BPC4083CT: Small Block Chrysler 408ci Stroker Base Engine 445HP/500TQ | JEGS
It seems like everybody and their grandma is goin for big block builds (I disagree with that listing calling a 408 a small block). If I was gonna do a big block I woulda got a B or E body, but I just want a lighter small block to keep that A body halfway nimble. And while a big block crate engine may be cheaper than all this stuff, I'll be making up that difference over time with the less gas I'll be using.

Sorry for going against the grain there, but I just think that always going for the big blocks is kinda overdone. I'm gonna give the 340 its time to shine