Yeah, there is a slotted stub keel and swinging centerboard.
SD, When I refer to hardware store, I mean cosmetic parts (paint, varnish, windows). Structural glass and epoxy, standing rigging, halyards, etc will be marine.
I will be sailing freshwater. For now a small inland lake, future possibly great lakes (ontario, erie).
The people who find fault in what you build typically don't build anything at all.