One of the cheapest, easiest and best dinghy's I used was an 8 ft version of this
One sheet of 6 mm (8x4) ply screwed to a bench at approx 3/4 mark for bottom
Bend front up stuffing
paint tins under to hold the curve
offer up 6 mm side and scribe curve and cut
do transom and front
ran seats for and aft (4mm) to stiffen
used 50m pvc as gunwale cap, one saw cut push down over 6mm, and same (1/2) used as rubbing strips for bottom
cove and glass all with 5oz and
epoxy.
Less than a weekend to make.
This could carry 4 to 5 drunken
men
I could safely stand up and walk around, even on the gunwale
2hp powered it along nicely enough
It could handle a 1 metre chop at a pinch
Looked like nothing but most were continually impressed at its usefulness for price