This...He isn't in Reno, but about 4-hours west and well worth the drive. I always recommend Georg Esterer at Valley Hybrids. He's a bit of a legend in the TLC community and does quality, honest work. I don't know what his availability is these days, he may be booked out for months. Like @WILLD420, knowing the model will help. If an 80 Series, then check out Slee's "Newbie" guide. He has one for 100 Series too.
40, 55, and 60 are pretty straight forward and I am sure there are guides on them here on mud. If you can't find a Land Cruiser expert, then you could take a checklist to a place like High Rollin Customs in Sparks and see if they can go through it for you.