I completed this Limerick harp from your plans about 2 weeks ago. The strings have stabilized very well and the sound is amazing! I used threaded through pins for the tuning pins and brass hexagonal bridge pins. I will be installing Truitt levers on it when they arrive.
The neck, pillar, sides and back are of Zebrawood. The top cap, soundboard trim and base trim are Walnut. Aircraft plywood (3mm, 6 ply) was used for the soundboard with a string rib of Hard Maple.The sides are 3/8" thick with liners made from solid Beech. The liners are 3/4" wide at the base and 5/8" wide at the top. The base is made from solid Beech.
The weight of the harp is 12 3/4 lbs.