Hi GB.
There is a guy in Richmond BC Canada on e-Bay who is doing a 2 sheet plan with frames to build a crashtender. this may be a bit more suitable for you if you dont like the postage for the kingston mouldings hull.
have listed item no for you and pix. cheers.
RC Plans for 1/12 RAF "CRASH TENDER"-46" Item number: 130194623200