This will be a long winded reply so bear with me...
When I first bought the G3 I was all about making the swap, but then I started comparing the pros and cons.....
Makes complete sense. Even more when you look at the stage you were at when you looked at changing directions.
I did up a spreadsheet one time comparing upgrading my current motor or swapping to a Gen 3, and in the end it looked like a wash. I figured that airflow was the key, so if I wanted the easy power a Gen 3 proposed, I would need aftermarket heads. So, with a new cam, Edelbrock heads and MS3 EFI, it looked like it would be around $5300. At the time, a used truck motor with all the used parts to swap it to a car intake/accesories, and depending on the method of running the EFI (OEM or MS3), it was between $4700-5500. If I dropped the heads and cam and just went EFI (MS3) on my 360, it was only about $2400. In the end, I decided to buy a 2015 Challenger R/T and leave the LA in the Duster. :-)
