I am repairing a Simpson 260 Series 3/4 - it is a Frankenstein of a series 4 meter movement and face with a series 3 board that has been modified with a series 4 200k pot across the meter. Don't even know what to call this beast. Anyway, repair is going well except for one thing - Some of the resistors are out of tolerance (all 1%) and I can't find replacements for them. There were a total of 6 resistors out of tolerance and I was able to replace 3 of them with modern resistors by putting new resistors in series or parallel to get the right values. There are 3 resistors that I just can't find anywhere - 15M 1W 1%, 80M 2W 1%, and 20.2M 2W 1%. That last one I could just use a 20M (if I had one) in series with 200K. I looked on ebay, Amazon, Digikey, etc and nobody seems to have anything like these values or anything close to them in those wattages. Any ideas where to look for these?