Sorry if this is covered elsewhere, but it looks like FP Marine is getting close to launching their replacement solution for the touchpad/EIM system that has plagued so many folks over recent years. Looks like a pretty slick solution as well using lighted toggles. They bill it as fairly plug and play, most importantly where it plugs into the original Searay Harness at the fore/aft EIMs. No pricing on the website yet, but I'm hopeful that this is a legitimate solution for those having trouble with the often hard to find EIM units.
https://www.searay-parts.com/Sea-ray-EIM-Replacement-p/sr-panel-eim-280-340da.htm
https://www.searay-parts.com/Sea-ray-EIM-Replacement-p/sr-panel-eim-280-340da.htm