Hmm. In that case, I'd say stick with those original options. However, Why did you pick 6 month of internet training? Is that equivalent value to three weeks of hands-on training? I would set the value of the digital training offered to just slightly above($50-100) the value of the hands-on training. Every month extra you give them is $12,000 less in your pocket.
Unless you are offering the extra time as an incentive for them to take option B.