Mission accomplished..... I took (and passed) my written test yesterday for my Class B license. I did ask for a learner's permit and was told that is what I got. You are correct Steven@146, it does cost a bit more, but I figured that since my husband has his Class B license and he would love some help driving our rig from Texas to Oregon in a couple of weeks, I decided it was worth the extra money. This way I can legally help him drive and that was my goal.
The lady at the DPS office told me that my learners permit would be valid until my Class C license expires in several years. I find that VERY tough to believe and I won't rely on that answer. Once we get home from Oregon a month from now, I will have lots of current drive time under my belt and I'll take the drive test. Looks like I should schedule it now as our closest DPS office is booking appointments in September already! I'm thinking that I will continue to watch the wait times on line and opt to visit a smaller office for my drive test. Our local office includes a stretch of driving on I-35 (my husband did this one) and I'm not even thrilled with that in my car, let alone in the bus with a person grading me, sitting in the passenger seat 🙂 Thank you all for the input!