I found the address and name for the guy who wanted me to evaluate his U800 substitute board for the 2465 horizontal output IC;
Thomas Andrew Lafay snipped-for-privacy@msu.edu
If anyone is interested,they should try to contact him and perhaps obtain a board for installation and evaluation.If you do,let me(and the NG) know how it works out.
Unfortunately,I don't have a 2445 or 2465 to install it in,nor any cal standards equipment to evaluate it.