Thanks for your responses. It seems to me that Strelets the dismounted French Dragoons would come closest, as PSR mentions their uniform lasted until 1750 or so. .
Colin, are you aware of Kronoskaf?
This on-line bible for the SYW shows SYW French dragoons as having turnbacks so I'd disagree about using the Strelets' WSS dragoons.
The SYW French could be quite archaic in appearance - see my Wodensfield SYW French infantry in the link I gave in my first post.But even these coats, with no turnbacks, are shorter, less voluminous & with smaller cuffs than for the WSS.