Hi there Nathan,
Yes my pipe is the OB pipe from QuickDraw. My only challenge was to make-up a flexible mounting for the pipe itself. I achieved this with a little aluminum plate bolted to the side of the Lawless leg, to which I added two rubber anti-vibration mounts. I then bolted two 1mm thick X 12mm wide stainless steel strips to each rubber mount, and then carefully joined the SS strips to the pipe in four places with a TIG spot-weld while everything was mounted to the engine. I then removed the pipe and added some hard silver-solder with a Butane torch to the four contact points. I now have a pipe which is well supported but still flexible. You can see some of this detail on the photos.

I must admit to not being experienced at all about props for gas boats. I will start off by using a beautiful 6717 three-blader that I got from Bob Austin at the Prop-Works, which he originally supplied for my gas cat. I'm hoping it will also work well on the gas OB tunnel. Time will tell !

I love the look of a wood model. I haven't build any in wood yet, but I enjoy making my own 'custom' radio boxes in thin marine plywood.
I saw some great pictures of an Illusion running in one of the earlier posts/threads here. I think it belonged to the moderator of this forum.
Cheers for now,
Wennie.