Motor Well? Where? How? Skeg?

Here we are at a crossroads.  The hull has been stripped, new bottom installed and glassed to the top of the garboard.  All bare wood given two coats of CPES. All has been sanded, but what to do about the motor well?  Here are some recent pics in no special order.

 Filled in the missing piece pf 1/2 inch ply and glassed.

 The glassed bottom and garboard have second and third fill coat

 Top two strakes have been coated with two coats of CPES

 All has been sanded smooth and ready for paint.  Problem?  What to do for a motor well?

 More pics than I need but very please with how she looks, knots and all

 Several pics of the aft end where a motor well might be installed.  I have acquired two 1 1/2 inch through hulls and a length of 1 1/2 PVC that altogether make a fine motor well if that is the route I go.  Problem? Having the motor in that vulnerable position makes it necessary to have a skeg to protect the motor from underwater obstacles.  A full motor well, say 10 inches wide and 30 inches long would allow the motor to kick up and eliminate the need for a skeg, or at least allow for a minimal one for directional stability.

 More pics of the area in question.  The bottom is only 18 inches wide where it meets the transom.

 Looking aft, the tubular motor well would be just behind the support for the aft deck

 The tubular motor well would not addd any drag to the hull, but I fear the full on motor well might, or might not make enough drag to worry about.  Thoughts?

 If I go a full on motor well it might go in front of the deck support and it would allow for the well to be  long enough to allow the motor to kick up into the boat.  I really do not want to cut into the transom.

 Here is my tape showing the distance from the transom to the first (last?) frame. I would really appreciate any thoughts on the location of and type of motor well.