CAR + ERP Retail deployment

Hi,

I need to size the infrastructure required to deploy an ERP/Retail solution and CAR (Customer Activity Repository) on HANA. DB.

I got the estimations for sizing and the summary  is:

The deployment option decided  is a co-deployment, that is, installing  CAR HANA and ERP HANA  on one HANA DB (two schemas on one HANA DB) and separate AS servers for ERP and CAR.

And here, my questions:

1) Would this deployment option be  treated as  MCOD, MCOS or MDC?

2) Regarding CAR ABAP AS, is feasible to distribute the 60.000 SAPS between several AS ABAP instances, 4 x 20000 SAPS for instance, or it doesn't make sense?  I don't know if  CAR processes running in the application server can be splitted in that way.

Thanks in advance,