Hmm, that looks promising for this year (I have not used it in the past). I see it coming out to $69 per month for the smallest package with the necessary channels.
It looks like the Sling package you would need to to get P12, ESPNs and FS1,2 (Orange+Blue with Sports add on) comes to $66 per month. You can also wait to add the package with FS1 (Orange, I think?) until the OSU game, and cancel it immediately after to save $10 per month.
I am going to enjoy one final year of a conference having 6 channels 24/7. Hopefully ESPN+ will step up with miscellaneous B-12 coverage next year.