Help identification of yacht please

Dear Members

Harmen Hielkema is seeking assistance with identification of this model. 1200mm long 250 wide, 250 deep (approx)

Grp hull, poured lead ballast. Gellcoat colours including decks. Rudder needs sectioning from keel trailing edge. All chain plates integrated into gunwales. 2 potential mast positions, presumably for gaff rig cutter or bermuda sloop options.

Owned originally by the late Bob Wilkinson, well known local boat builder of Onerahi. He was capable of building to this level of quality.

This model has never seen a rig. I may make both options.