The RH rod on my '80 B7100 is adjustable, but rusted fast, I dunno about the '98 B7100 yet, I am picking it up tonight
Even w/o the rust issue, the adjustable rod isn't really adjustable from the seat. The Ford 8N setup was real nice, as the crank is easily reachable from the seat, and because it is gear driven it requires little effort, and doesn't require a wrench.
Yes, a hydraulic link would be great, but the 8N crank type just seems like a great simple upgrade.