I live not far from there in the Willamette Valley. I don't even know of any mechanics that I'd trust near me. I usually do most of my own work for that reason. You should read here and learn some of the most basic maintenance chores. This forum is a gold mine of information.
As for the shudder, how many miles on your rig? A transmission fluid drain and fill, or 2, may be needed since the shudder is a classic symptom of old ATF. But at high mileage, well over 100,000 miles, might complicate things. You may even find most shops will balk at either performing a full flush, or a couple of drain and fills (preferred if your FJ has a lot of miles). However, many here have done a couple of drain and fills on high mileage transmissions and have had good success solving the shudder and having no shifting issues.
As for the shudder, how many miles on your rig? A transmission fluid drain and fill, or 2, may be needed since the shudder is a classic symptom of old ATF. But at high mileage, well over 100,000 miles, might complicate things. You may even find most shops will balk at either performing a full flush, or a couple of drain and fills (preferred if your FJ has a lot of miles). However, many here have done a couple of drain and fills on high mileage transmissions and have had good success solving the shudder and having no shifting issues.