This might not be the politically correct thing to say, but if it was me I don't think I would be ready for that ride. If your longest ride to date is only 30 miles, sitting on a bike to ride 110 miles could be very painful. Although, I don't know when the PMC is so it may be well down the road which would give you time to prepare. If that's the case then why not give it a try...especially if there is SAG support.
As we must account for every idle word, so must we account for every idle silence." ~Benjamin Franklin