Hello Lee, I'm in the process of building a kit where the hull and all vac formed mouldings (large ones at that) are thin abs with an assortment of ply for formers and strengthening. Here's a pic of what I have / am using and achieving excellent results, cheap as chips compared to stabilit express and no mixing required. The deck came in two parts one 750mm in length! needed gluing each side and Bostik's pvc polyweld gave me time to positon and has made a brilliant bond.
For the ply I've used contact adhesive, Zab a doo (similar usage) and thick cyano. All worked A ok. I've also used a lot of standard styrene as well as abs off cuts for packing and strengthening in lots of areas and used acetone (such as the bottle of polyweld, there are many others) both this and the bostik or any such pipe welds give a welded joint whereby the materials "melt" into each other as opposed to just sticking together, etremely strong bond.
Regards, Tony.
