Yes it would but its an awful lot of work. FYI the reason for the lack of effort on my part re CH maps is not quite as portrayed by Rob above, it is as follows:
I used to hand draw CH maps in Vasl colours using scans of maps - this process would take me several weeks per map. I would then send them to Ray Tapio and request permission to make them available, sometimes here communication would break down and this could either take a day or several weeks.
Then one day Ray sent me an original map file and asked if that would help the process. Using the original map files I could do a map in CH colours in about 30 minutes. So after that I did not ever want to go back to my old method. The problem was that after a period of time when I received quite a few map files from Ray comms broke down (for whatever reason- one has to understand that Vaslising of maps may not be the highest priority for his workload) and the feed of map files dried up.
It was at this point that I got diverted into creating Vassal modules for all my old Wargamer and S and T magazine games.
However recently comms have been restored and Ray has been providing me with some map files again, one of which is the Jerusalem map. I am working on an extension for the counters, but this will take time.