I hear ya on the skirmish force. And yes, all campaign backers receive the Bonnie Prince figure.
With the Highlanders there are 5 different packs, command, highland firing w/ shirts, highland firing w/jackets, highland charging w/shirts, highland charging w/jackets. And with the Highlanders in real life mostly all being armed with muskets, if I get more highlanders beyond the initial 5 packs, I'm thinking of getting more with the muskets.
And now with the Ecossais command available, going need to decide how I'm going to fit one of those packs into the purchase. Fortunately they can be added on as a separate pack as one way, and that might be the way for me to go on these.