ok I built my prop stick and im quite pleased with its strength and simplicity so I posted the picks here:
http://www.saltycajun.com/forum/album.php?albumid=602
if anyone has a jonboat they are thinking about doing this to and don't want to drill holes in the boat then these pics might help them.
my motor has the screw clamp holes in the motor mount so I just used those as a mounting point and not one single hole needed to be drill in the boat anywhere or any clamps needed to be attached.
it attaches by sliding in and twisting into place for a snug tight fit
materials used:
one 10ft length 1 1/4" pvc grey conduit - cost $4 @ home depot
one long radius 1 1/4" 90* pvc grey conduit fitting - cost $1.25 @ home depot
one 1 1/2" pvc "T" fitting - cost $2 @ home depot
one 1 1/2" pvc flat end cap that fits inside the fittings (drill out a 3/8" hole for bolt in center) - cost $2.30
one 1 1/4" pvc "T" fitting - cost $1.60 @ home depot
one 1 1/4" pvc 90* fitting - cost $1.25 @ home depot
one 1 1/4" pvc flat end cap that fits inside the fittings (drill out a 3/8" hole for bolt in center) - cost $1.80
one 1 1/4" pvc 45* fitting - cost $1.30 @ ace hardware
two 2" stainless steel 3/8" bolts 2" long - cost $3.35 @ ace hardware
two 3/8" SS lock nuts - cost $1.44 @ ace hardware
two 3/8" SS washers - cost $0.40 @ ace hardware
two 3/8" SS oversized washers - cost $0.80 @ ace hardware
four #12 SS round head Phillips screws - cost $1 @ ace hardware
total cost for everything = $22.50