My Trolling Motor Setup

The components:
04 Drifter
Minn Kota 112: 12 volt, 43 pounds thrust, variable speed, Kipawa prop.
Cabela's AGM battery: Group size 22, 38.5 pounds
Outer permanent mount: 20" x 2" x 2", 1/8 inch wall aluminum square tubing
Removable motor mount: 28 x 1.5 x 1.5 onto which a piece of 6 x 3 x 2 tubing attached via a 5" square which had been trimmed to fit.
On the ends of the permanent mount, I used 1/4" bolts run through rubber stoppers which acted as shims to compensate for the hull's curvature.  The middle was flush.  The inside dimensions of outer mount is 1.75".  Fortunately the bolts had 1/4 inch high heads which took care of the vertical difference.  For the horizontal "slop", I drilled 5/32" holes at each end.  By using 3/16" thumbscrews, they tapped themselves and when tightened, push the motor mount forward.  Flushing the starboard ends, I drilled a 1/4 inch hole for a lynch pin which prevents any side-to-side slippage.
The purpose for the hinge to to allow the TM to pivot when it hits an obstacle.  When reversing thrust, I must hold on to the handle to prevent the motor from climbing.
Notice the plug next to the right rear corner of the seat.  From there, 8 gauge wire runs forward to the battery which is mounted in front of the starboard footwell.  This nicely balances the load.  The battery is prevented from shifting by a stout bungee cord.  There is also an 30 amp inline fuse.
The cost for materials was around $35.
I don't have a GPS so I don't know the speed but it can throw a sizable wake.  I fished six hours yesterday and the battery lost a third of its capacity.
 

nice rig,  how did adding the motor affect the stablity of the boat?

Carl

What's the yellow fabric stuff in the bottom of your tankwell and the top of your bow hatch?  Is it a non-slip thing?  If so I think I like that idea even better than the trolling motor. 

Huntinhick:  Stability is fine; I can stand up in the Drifter.  Notice that the TM mount is less than half way up the shaft.  This is set so that it provides one inch of clearance when the prop swivels under the kayak.  If I were to drop the motor to the maximum depth, turn it perpendicular to the boat and apply full throttle, there would be enough leverage to flip it.

bsteves:  That is vinyl mesh shelf liner.  A roll 1' x 6' can be found at a dollar store.