Do you have experience working on vehicles? Are you a quick learner in that area? No matter how well it has been maintained, any 1981 RV is likely to be one issue after another. Most may be minor, but some may be more complex. You have to stay on top of them. If you can fix them yourself, it will be fine. If you have to get them repaired, it will drain your college and travel fund. This is especially true if it has sat for a long time. A 30+ year old RV with only 47K miles no doubt has spent a lot of time sitting. I would actually be more comfortable with more miles on it at that age.