467.7 FMW would be a great charger, spool like your 366 and flows good up top o keep your 366 and put a 480 with it.
I run a 75/83/.90 on my 06 its a weekend driver as well. Spools around 2100. What is your fueling set up.
On the Dmax side of things, an 87mm turbine is worlds ahead of the 83. Better spoolup due to the design, as well as better top end flow. I'd try an 87/.90