I am searching for two feed thru insulators for a Bauer 707 box. They measure 2 1/4" in diameter and I'm not sure of the length, but I'd estimate about 2" in length per side. These are the insulators used in the RF section to feed the plates of the 4-400's. Does anyone happen to have a couple they'd like to rid themselves of for a fair price? Thanks, Rick/K5IAR