RE: 1/4 lanier laser
I have built this kit twice, and I may build it again, as I like it so much. Working with the foam wing is a little different. You will need to cut a tunnel for the aileron servo wires to come through. I used a 1/2" (or so) brass tube, sharpened and filed "teeth" on one end. This makes a good cutting tool for this task. Keep the fuse structure light.
This is a great flying plane, very "buoyant" in the air. I don't think your blower engine is a good choice... much too heavy. This is a 1/4 scale plane, but it's not very large. The original laser was a pretty small aircraft. Mine were powered by ASP 1.08, not as strong as an OS 1.08, but a very good combination, and the other with a Magnum 1.20 2 stroke (a little overpowered, but still a great combination).
Be sure to install the tail flying wires. Lots of weight back there, but essential, as the tail feathers are light construction. Enjoy!