Sounds like a great idea... I think once you might post what the route might look like (I would have to look at a map...) and where folks could join up for part or all of the trip you might just have some followers!
Living here in Northern California we had the Yreka trail that branched off of the Oregon Trail. Our little portion is known as the "bloodiest trail"... more deaths occured along the Yreka Trail than any other.... but then they passed right through the Modoc Country (near Tulelake, CA) where the Modoc Indian War happened in the 1870s or so... Interesting stuff. We have a local man who has walked most of the trails and documented them here, a Mr. Richard Silva. Retired guy. Very busy man! He has written several booklets that the local Siskiyou County Museum self-publishes. Here is a website that has a lot of Richard's information:
California - Nevada Chapter OCTA Trail Photos/ Southern Route
You might check out this link, has lots of interesting info:
Oregon-California Trails Association
Cool idea. Keep info coming!
Mrs. NorCal Bambi traveling in S Tardis ~ from the Great State of Jefferson