Larry, sorry to hear about your issues on the 314. About the leak, make sure your vent on the hydro is functional. If the hydro pressurizes as it heats up it will force fluid out any weak seal.
No charging. - Checking the stator is easy. You should have a low resistance between the windings. The outside 2 contacts on the connector that goes on the regulator are the stator winding. The center contact on the regulator goes through the ignition switch to the battery. So, another thing to check is the ignition switch itself. If you don't have a good connection in the switch then the battery will not charge properly. Because there are fairly large currents involved you need to make sure that you have good connections throughout the circuit, including the chassis of the regulator to the engine chassis and back to the battery - terminal. You could have a bad regulator as well. I'm not avoiding your question but trying to prevent you having to pull the engine if the stator is not the problem. You will have to pull the engine to get the stator out from behind the flywheel.
I had bushings added to my 317 front axle. it was expensive for the machine shop work. I had 1-1/8 od x 1 id x 1-1/4 long bushings installed. You might look at measuring up the spindles and axle to see where the wear is. A bit of wear is not a problem. Used spindles or axles are usually available from some of our site sponsors.
Good luck getting it sorted out.