They are available and separated for you.
I still have a few bits and pieces.
About the bases you can always opt for putting the rank and file on unit bases and use the light infantry individually.
I dont know what type of bases Shako requires. I mostly play skirmish games with some 20 or 30 per side so i end up using individual bases.
Another solution and again if the rules require and you like you can use the same size of bases for all type of infantry and just put less figures on the light infantry to get the feeling of spread infantry.