V3: Reconciling Myself to the 1770s

My dear mother and I are planning a trip to Colonial Williamsburg in October of this year.

Of course, that means getting all excited about costume possibilities NOW, and planning all the mix-and-match combinations that will make travelling with and dressing in the whole Georgian shebang as easy as possible.

But there's a wrench thrown in my costuming monkey-works...

The weekend we are planning to attend is that of the "Prelude to Victory" event, which is a specific re-enactment set in 1780. While I would like to go willy-nilly and sew my favorite later 1780s and 90s jackets, that would be highly historically inaccurate of me, so it is my task to find items from the later 1770s to sew...but that cancels out my original plans:

My first ideas for jackets, but the blue and green are both 1790s, and the brown is so common in Colonial Williamsburg that Abby told me not to make it.

The problem is...well...I wanted to make jackets and various articles of undress, and I don't much care for those I am finding from the 1770s. :- I love the polonaise styles, and you can't really go wrong with robes a la Francaise and Anglaise, but that defeats the purpose of mix-and-match jackets + petticoats.

So far I've gone on a Pinterest rampage and pinned everything 1770s I could find last night. My 1770s Pinterest board is here, if you want to check it out.

Met; 1778, polonaise and pet en l'air ensembles, French

I'm observing a heavy love of the polonaise, all of which show matching petticoats, with the use of moderate panniers. The jackets I am seeing are pet en l'airs and brunswicks (both sack back jackets), with very few caracos or casaquins, and no pierrots, although the ubiquitous swallow-tailed Williamsburg jacket does date from this period (#5).

But I love pierrots.

I wanted pierrots. :-(

Pet-en-l’air, mid-18th century From Christie’s

Gallerie des Modes, 1778. ”Demoiselle habilee en caracot…”

Brunswick, V&A, 1765-1775 (sack back jacket, comperes front, hood)

The Met, 1775, French

So...what to do? Is it possible to mix-and-match skirts and jackets in the 1770s, or should everything match? I want to transport the fewest articles possible for the most look achievable. What about the panniers - would it be acceptable to forgo those, or are they a must?

How would you solve this conundrum?