Thanks Matt, I owe it all to the kit
Should have mentioned that it probably is for an intermediate or better flyer as it can be quite a bit faster than the usual foam floater. The ailerons are large and roll it quite nicely. The Hacker A20-20L provides about 10oz of thrust over the AUW so you know it will get up and boogie.
On the motor mount...the firewall was simply moved to the very front of the nose and the motor screwed to the back of the firewall. Neat and simple.