Thanks for the help guys.
I did purchase some Van Dick figures: mainly command and their French box. The mounted command look like beautiful figures and they will be used exclusively to make some higher command vignettes. I figure, if the miniatures don't match I can use them to make some distinctive units like guards of maybe the Wild Geese battalions. Or maybe just paint them up and sell them.
Having taken your sound advice I have looked at the Pendraken LoA and SYW ranges and they look like what I was after. So I'll go with that strategy in the future. I'm sure that now I've found a way to do WSS in a manner that appeals, I'll have to make many, many, many more battalions and squadrons in the future.
Cheers and thanks,
IanKH