I've just about got two Kenyan Top Bar Hives finished up. Just have to add a few screws for long term durability.
We went off of the Bush Farms instructions except that I added some holes and my Dad who is the wood worker between the two of us insisted we bevel the two angled boards to make them fit up tighter.
That is my son putting in the top bars. Now I am planing on putting up on cinder blocks and moving them a bit into the tree line to hide them from view.