"Nellie" is an Island Class cutter, made by Vosper-Thorneycroft in 1992/3. My mate Chris Pratt was on the committee which decided on the purchase for HMC&E. He went on the be the first skipper and was also responsible for obtaining the plans and photos which spurred me into making the original plank-on-frame model. Then I met Lawrie and Jackie and the rest, as they say, is history.
Sentinel is a superb vessel for coastal duties but a bit too small for the sort of trans-Atlantic operations which are deemed necessary these days, so the Valiant and her sister ship (which I think is called Vigilant) were commissioned from Damens.
Since I retired from HMRC I have lost contact with Commander Pratt so I don't have any information other than a Damen publicity brochure with a few photos and some GA drawings at a very small scale.
Shame - I'd have liked to build one myself one day.
FLJ