You asked about beaver tail blades. In the late 80's, I bought two from a guy somewhere around Kearney, who made them. They are cherry, solid, the blades are wide and long. The shafts are narrow, that isn't always nice. Last year I had to repair a couple of blade cracks, but not complaining after nearly 30 years of service. The paddles draw an enormous amount of water, so anything I do can be done fast - bracing, avoiding, prying, speeding, fighting wind, etc. The thing is, they are heavy. Last year on my solo trip, my elbows arrived at the park pre-ruined, and I had to switch to my plan B paddle.
I have two Plan B paddles. One from a garage sale the other I found in a river. Both are old. I don't know the wood, but they feel great, are extraordinarily light, flexible, and were easy to sand and finish for use. They don't draw as much water as the beaver tails, but they are easier on my elbows. This may be an option for you. It is pretty cool to hold a paddle in your hand that you have a little of yourself invested in.
Lastly, in my very early canoeing days with the scouts, one of the guys who would come had a hollow-shafted paddle. It weighed nothing, but he had been using it forever. The reason it was memorable was that he put a sticker on the blade with the month/year of every trip he had taken with it. He added to it every year, and sealed it with varnish or polyurethane or whatever. The blade was covered. That could be a fun thing to do.