Big Harriet Lane fan here! I am a "plank owner" of the current USCGC Harriet Lane.
I have both kits in my stash. I have the original Pyro kit, which came molded in three colors- medium brown, black, and dark green (hull).
I also have the old Model Shipways kit, in the yellow box, from the days before Model Expo took them over and upgraded the kit. It came with a bunch of cast lead fittings, many of which have corroded away to lead dust.
My current thoughts are to combine the two kits-use the best of each. I plan to use the Pyro hull and then use the wood parts for the masts and spars.