One inch = 25.4 mm so you are pretty close on the 38 length, but I think a tic short on the 29. The 1/16th might be just a hair big for the holes in the shears on the PE. I'm still looking for the callout stuff, but got to get to a bigger HS to see.
They also call for 1mm brass rod for the SJ mast and 1mm styrene for the SD mast. Looking at .039/.040 for those.