Just one humble opinion, FWIW, on the very sound advice above.
If you call Steve at Berts and/or Randy Gros, what ever they say will at the very least be the Gospel Truth.
We can thank God every day for our humble, honest, and most wonderful Model A gentlemen providing us with Model A Supplies, Model A Services, Model A Forums, and Model A Forum Members constantly filling in and trying to assist with their opinions and experiences.