Belles 350A Reference Version upgrade

Any 350A owners contemplating sending their 350A back to Dave to have the Reference upgrade performed?

Link to the upgrade news:
I'm interested and contacted Dave about it. He said they are filling new orders, and won't be able to start on upgrades until April.
I'm interested too as the 350A has been the cornerstone of my system. While other components have changed in my system, the 350A has remained (although I would like to try one of those Krell KSA150s).