I've used cans and strings before, in another lifetime almost, but I'll leave the best string to you guys.
I'll be at Weldtec Designs in San Diego the last week in May for suspension work and bumpers, and will head north from there. I'd be happy to meet up on the way north somewhere in NV or north.
Could also meet in Winnemucca NV and just take Hwy 95 north.
I do have to find a place to store my motorcycle/trailer during the Roaming Rally. I'll look at Coeur d'Alene for a place. I'm heading to MT and WY after the Rally.