I have had both and I have trouble finding the true simularities other than looks in the Limited comparred to an SRT
I to was into the english roadsters many years back and though I would love to occasionally take the little sewing machine engine for a spin you need to test drive the SRT before making ANY decision.
As far as worth 6 grand difference? It is truly apples and oranges.
If you try to drive the SRT like you might the 4 bangers you now have you will be selling it for parts.
Enjoy the Ride...
Mike