I'd agree that you need too many parts, and the most economical way (or perhaps the only practical way) to get all of them is to find a donor machine.
>> Ok.. Can someone tell me why its a bad idea to take the agitator shaft out of the top housing?
>> I’ve read that in the other thread on rebuilding here..
The reason why is that that pin can be in there REALLY tight, and that sintered gear is easy to damage when driving the pin out. You could also damage the bushing if you weren't careful - you have to make a fixture that supports the gear, not the transmission housing. So the general advice, for machines that seem OK that you are rebuilding for kicks, is to just leave that assembly together. You're likely to do more harm than good in removing it if it doesn't need it.
The groov pin is yet another NLA part too, for what it's worth.