Hey Bicycle Ron, the bike in the picture is a Kustom Kruiser Roadster, which is the same frame as the Slick Daddy....if they can do it on a Roadster, then there should be no problems doing on a Slick Daddy, outside the 3-speed gears of course.
Large, I can't tell you anything about the hose on the exhaust, but the tank is a custom fabrication out of fibreglass. The bike belongs to a guy named Alphonso Rosselli who is on my Yahoo Group (Motocycles). He also built a really nice Whizzer-powered Flying Merkel replica.
Hey t-brown, The bike in the picture looks to me like a very 'old' roadster!w/a great way of expressing themselves on what they're about! Also, the slick daddy frame is 4'' longer and rear end is 1'' wider! That must be why my 3'' fireball wheel and tire did'nt fit my roadster! I had to adapt!
If you are still considering this with the Slick Daddy then be warned of the extra wide rear fireball tire to deal with. The bike above is the roadster with a 2.175 tire or smaller. The Slick Daddy has a 24 x 3.0 rear tire. Also the frame is difficult to mount a Happy time to, because its stretched out so much. If yours is like mine then it has the 3 speed Nexus and i don't know how long it would last with a motor on it.
Get out your fabrication hat if your going to do more than pedal that bike.