I have successfully built a stock Fossapup64 with woof-CE using a minimum of changes, using the currently available configurations.
The kernel it was built with was a series 5.XX.XX which has been swapped with @ozsouth's kernel 6.8.1 which so far has shown excellent performance in this latest woof-CE generated stock Fossapup64.
This ISO is available to test out and experiment with the link below. On a DELL PowerEdge 210 II it is very quick and responsive. This ISO is the stock version with the 6.8.1 kernel.
Further pushing this test, I have added in almost all of the updated packages collected by @mikeslr that match with the most current upstream Focal Fossa updated packages.
So far almost everything is working except of course this build does NOT have yet all the features that the original Fossapup64-9.5 and the later F96-CE_4 have.
Somehow now this base model will need to be outfitted. Question is try to alter the woof-CE recipe to build more of a ready to go F96-CE_5 or go with the proven method of taking this base version and using remaster techniques to achieve a production ready F96-CE_5?
Download -> Experimental Fossapup64 code named F96-CE_5-alpha4