New hemi install total cost

G3 Swap:
ENGINE/Computer/Harness:
might be for an 08/09 over 50k miles. but you'll be able to hear it run in vehicle
Total: $1000

Tranny/Flexplate:
Total: $300

Computer/EFI controls:
figure out your own harness using online PDF wiring diagrams
Drive by wire pedal $200 (guesstimate)
i don't think computer NEEDS to be flashed
Total: $200

Fuel system:
do a simple inline/external fuel pump setup
This item:Walbro GSL392 Fuel Pump $73.32
WIX Filters - 33737 Fuel (Complete In-Line) Filter, Pack of 1 $34.78

Those are amazon.com prices so $105
If you install that Walbro IN the tank you don't need a fuel accumulator or low pressure pump so you can get that cost down to say $100 if you catch a deal on the pump and filter
I've seen that wix filter for $25
and the pump for $50 on various forum classifieds
just gotta keep looking
Cheapest EFI fuel system is $100

Exhaust:
Go with SRT8 manifolds for $50
Roll your own Motor mounts & Trans crossmember $100
Total: $150


Grand total: $2,000


But you'll be waiting to get that motor at that price and you'll need to be pretty handy/crafty in other areas
And that $1,000 motor won't be as fresh (low mileage) as the $2,000 motor
That $2,000 is the best of all worlds from pieces of what I've heard of folks getting things for and also prices I've come across on ebay/craigslist/classifieds