Willy
Narragansett used TRS parts, so if you build a TRS parts set you are essentially building the same piece. Though I do like guns I built better then ones I buy. You are looking at a little under $2k in parts
Fergusons will leak a little, don't wear a big brimmed hat. My light infantry cocked hat and my cocked hat work fine, as does my fatigue hat. My big honking straw riceplanters hat. A bit to much brim. any brim basically 1 hand wide (like your saluting) is fine. Some ball caps are longer then that some are not.
Ricky
Me
Ernie does nice work and while I have handled his Fergusons, I have not had a chance to fire one. I can say with Fergie-Lube and lubes ball Ricky and I get more then 2x as many shots without fouling issues. In sharing research with Ernie over the years it is my understanding he starts fouling up at about 30-35 shots, Ricky and my current record is 62 shots. Ernie is a bronze breech dry approach and there were bronze breech Ferguson pattern rifles. However no Ferguson Ordinance Rifles which is specifically what I was interested in. Ernie's are replicas of some private purchase Ferguson pattern rifles aka sporting guns.
Pictures of Ricky's Ferguson over 1500 total shots fired rather more then any original!!
1. Ferguson Rifle breach closed.
2. The screw breach is attached to the trigger guard. One full turn of the trigger guard opens the breach.
3. A close up of the screw breach showing Patricks Ferguson's 1776 patented anti fouling grooves.
After 62 rounds fired
The wrong lube, or wrongly applied lube can be a challenge to thick or too much creates issues with the anti-fouling cuts and the "touch hole" (in quotes because it is largely a half open cone in the rotation breach)
hopefully that helps some