Part 115589302300 (the adjusting gauge) has an MSRP of $100-$120, depending where you look. The strange thing is that two vendors who normally sell parts for below MSRP both want $20 more than the suggested retail price. So when I said I cannot afford it, I was assuming it would cost me around $150 after shipping and tax (if necessary). Out of respect for our hosts, I should also check with them, but I doubt they find such an archaic part for much less than MSRP. That is too steep for a part that hopefully I will only use once. I also don't know for sure if it is even available. I will follow your leads and get back to everyone.