Hierarchical models (DCPAM)

DCPAM (Dennou Club Planetary Atmospheric Model)
Three-dimensional atmopsheric model = Fortran 90 version of AGCM5
We are now considering
Constructing 3D primitive dynamical core besed on SPMODEL
1D, 2D, 3D under the same coding rule.
System for exchanging physical processes
System for exchanging vertical descretization: CP-grid
...

Is it really possible?!