Training for the Buff Epic
So I have been riding my road bike for about a year (with a break over the winter, brrrbbrbrrrr cold!). I have only rode 20-22 miles at most in one go though I ride 13 miles commuting every day. I would like to start training for the buff epic (link below) which is 100 miles. I have no idea how to train for something like this. The date is september 8th, so I have roughly 1 month and 18 days to train for this ride.
2 questions then,
1. Is it a reasonable goal to expect to be able to ride 100 miles in less than 2 months?/ Should I pick a later 100 mile ride instead?
2. How do I train for such an event?
Thanks in advance for any advice you may have :)