The info I have,
two indep companys were raised in 1678, they wore grey coats breeches, helmets or grey bonnets, armed with broadswords, bayonets, short muskets with buckets.
25th November 1681 Formed into a regt called "Royal Scotch Dragoons." Thomas Dalzeil Colonel
1683 still in grey cloth coats
1684 gained permission to wear red and scarlet coats.
1685 Lord Charles Murray colonel
1687 red coats, blue facings and tin buttons
wore caps as well as hats. In a painting at Hampton court dragoons can be seen wearing red coats, and brown fur caps, red bags (or hoods as they were called). the cap is similar to French Dragoon cap.
1688 Entered England, Sir Thomas Livingston colonel
1690 sergeants loops metioned, coats with laced buttn holes.
6606 pounds and 10 shillings paid to the Colonel Levington
1690-92 loops for officers and sergeants mentioned. Brass buttons replace tin. Refered to as the Royal Regiment of Scots Dragoons.
1693 Livingstone orders grey horses for officers
19th April 1694 Kings Parade in Hyde Park Sir Thomas Levingtons (livingstons's) Dragoons "were all mounted on grey and white horses, and new clothed and are more like troopers of horse than dragoons."
22 April 1694 "The Royal Regiment of Scots Dragoons"
1702 refered to as "grey dragoons", also "Scots regiment of white horses"
1704 Officers blue breeches and blue waistcoats embroidered with Gold, Subalterns laced belts, qautermasters plain red coats, hats of all laced. Lord John Hay Colonel
1705 buff belts, Grenadier caps ordered for the Grenadier coy, hats and cockades for the remainder.
1706 white linen frocks, lined blue. Lord John Dalrymple.
A image of Christian Davies (Mother Ross)
1707 renamed "Royal Regiment of British North Dragoons"
1713 become the second dragoons
1714 David Earl of Portmore Colonel
1717 James Campbell Colonel
The tapestry of Donauwert depicts the Royal North British Dragoons in a mix of fur caps and hats.
Post WSS Grenadier officer cap Royal North British Dragoons
Paris – Musée de l'Armée, Dist. RMN-Grand Palais
rear
early history of the Regiment
The Memoirs of Captain John Creichton: From His Own Materials
link
WSS memoirs
Capt Parkers Memoirs
PDF link
Books
History of the Royal scots greys
link
CP Lawson History and Uniforms of the British army
cheers
Matt