Loose clutch driving disk on JD B crankshaft

For my B restoration, I'm taking it on as a one-time, complete teardown and restoration. The whole thing was in very poor condition when I got it, and I've been tackling it piece by piece over the last several years. I had to get the crank main journals polished and rod journals turned down, and that's when I noticed the splines for the clutch driver were badly worn. I couldn't see putting this much effort into rejuvenating the engine and then put it back together with a nearly worn-out part that would require another complete teardown a few years down the road. I was referred to another machine shop that welded up the splines and reground them. It cost me $250 for that spline job, but I'll feel better knowing my entire crankshaft is 100% when I'm all done.