I know hard maple is difficult to seat the spun into and that is why I suggested the chisel. It may not matter but using the bandsaw will result in the loss of that much (height) of the finished item?
If you still have your old faceplate you should be able to get an adapter for $6-8. The jet should have came with one also, hope you find it as it never hurts to have two. If the lathe is new I would complain to Jet...probably send you a new one, they may have forgot to include it.
I used the spur drive for about a year. Then I turned a punky piece of wood and the spur wound up buried in the wood (the wood even over the threads on the spindle). It doesn't take any longer to mount the faceplate and I feel much safer if I want to start at a higher speed.
All tyranny needs to gain a foothold is for people of good conscience to remain silent. Thomas Jefferson