C&C:A and SPQR

I am not very good with Vassal as of yet and would like to add the SPQR maps and counter sets into my CC:A folder. The eventual result would be to replace the SPQR counters on the maps with CC:A counters to play SPQR with the CC:A combat system.

I own complete sets of both games, so I am not trying to do anything unethical.

Any help would be appreciated.