I hate to be a downer, but don't expect to get much selling either of them. $20 tops if you sell to someone who thinks it is really special.
The most valuable in the bunch, in my opinion, is the "Plus." What makes it valuable is its 3-amp motor. That motor can be directly transplanted into any Dirt Devil Broom Vac. This is a good trick people who own Broom Vacs should be aware of. If you need a new Broom Vac motor, you won't be able to find an original. However, a "Plus" motor is exactly the same and will swap right in! I've done that before with two of my Broom Vacs.