Sam, if you reconverted this with a rounded earlier continental cock it would look just fine on a composite gun made here 1770-ish.
Possible derailment but I think you’ve got your questions answered. There are limited options for locks for colonial composite guns. The Davis round faced English lock was very plausible in appearance for such use. No pan bridle, looking very Wilson-ish. A cock with a post to engage a slotted top jaw would have improved its externals for such use in my view. The very fine English locks available are quite high end and in my view, well above what we see on most colonial originals. I totally understand why lock makers copy the best designs but I wish for production non-Germanic locks that fits composite fowlers, trade guns, and militia muskets of the colonial period. Dutch, French, and English. Just my lens. Usually an outlier type of data point. Rifles are the focus here.