Hi Simon.
http://www.lambert-plans.com/
Over 270 plans, download size 285 KB. (bottom left of the page on lambert site click on the 270 plans)
go to bottom of page
L/S/240 CASTLE CLASS FRIGATE - HMCS TILLSONBURGE (ex PEMBROKE CASTLE) - HULL SECTIONS.
Redrawn from the original docking plan dated September 1943.
One medium sheet. 3 drawings. Drawn April 2004.
there are other detail sheets on his site for the castle its on the naval weapons page.
OR
Harlech Castle HMS MM1183
Designer: Vic SmeedStar Rating: *A 32in corvette model based on the Castle class but with modified super-structure giving
attractive appearance. Balsa/ply construction, electric po...
£5.95
I can send you some model pix to help if you get on to the build
cheers Frank