I'd think having a shrine city by the lategame is a fair assumption with CE or SE. Only on the hugest of maps might you not have the opportunity to capture one. Whether or not you will have a shrine by the time you want to be building your Wallstreet is another issue.
I loaded up your save for the CE, and without changing anything at all except a few farms in your Wallstreet city to towns, this is the CE-Wallstreet I got. It runs at a lower population , meaning less resources needed and less maintenance, but also less score. Unless I missed something this would be a far better way to run the Wallstreet city in that scenario, though it has less GPP.
I more than doubled the the
output of the city, and with some cheap science buidlings this will be even better obviously.
Yours produced 84.26
and 118.3
, compared with this one producing 175.5
and 129
.
Basically, running so many priests in a CE-Wallstreet is IMO not optimal.
I loaded up your save for the CE, and without changing anything at all except a few farms in your Wallstreet city to towns, this is the CE-Wallstreet I got. It runs at a lower population , meaning less resources needed and less maintenance, but also less score. Unless I missed something this would be a far better way to run the Wallstreet city in that scenario, though it has less GPP.
Spoiler :
I more than doubled the the

Yours produced 84.26




Basically, running so many priests in a CE-Wallstreet is IMO not optimal.