Rob Goss is running a solid cast block with Billet heads. The same block is available with water jackets. They certainly broke a lot of parts working out what worked or not.
There are many options here really, a 9.2" or 9.6" deck R3 with a W series head
A Ritter or EEI block with P7 heads
A Gen III Hemi, factory block and heads will get it done. You can can spring for a pair of Thitek heads and Aluminium block from BES
I believe Goss is running a billet block from across the pond as stated in an interviewI posted.