Re: 1951 Scott Attwater 1-30 16hp

[hotrod]

I would try McMaster-Carr. Their catalog is over 2000 pages of industrial supplies (that is where I buy brass wire cloth (screen) for fuel filters in mesh size 100 X 100 which means each square inch has 10000 holes).
For example, they have super hard rubber rods in 1/8" to 2" dia, in 36" lengths plus many other different materials (nylon, delrin, etc).