There are 3 kinds of board cuts. The board cut is determined by looking at the butt or the grain on the end as in that last picture which is rift sawn.
There is plain sawn (=), rift sawn (//) and quarter sawn (||). Again the above board is rift sawn.
For plane sawn and rift sawn you can look at the face of the board and allow 2 run outs per limb. The best board will have straight grain from tip to tip.
For quarter sawn you must look at the edge grain and it must be straight with no run outs. It must be tip to tip straight on the edge.
There are buildalongs on my site. There are some other board portions on it.
http://georgeandjoni.home.comcast.net/~georgeandjoni/index.html Also, the Traditional Boweyer Bibles Vol 1 amd 2 are good and # 2 has board info by Tim Baker.
Also Comstock's the Bent Stick has board info.
The above board is decent but I am super picky with boards. I would have left it in the stacks; the grain appears to wander off the edge in several spots. I'd back it with silk, linen or burlap.
I rarely do handle pieces. I let the handle bend and leave it full width. If you rip the board to 1 3/8 in wide you'll get 45-50 if you do your part.
At 1.5 in wide you'll get 50-55#.
I'd resist the urge to glue on a handle piece for your first few and make a bend in the handle bow.