Good luck in your aims, I genuinely hope it works for you but as before, the attitude worries me that you seem to think there is a magic wand somewhere out there that will make you Chris Froome without the effort.
@User beat me to it, why have all your bikes off the road at once,
Having messed up your maintenance schedule like this, have you got a pal you can borrow a bike from to keep your legs turning over?
50 miles is less than my weekly commuting and I'm as far from competing as it is humanly possible to get, are yours commuting miles or focused dedicated training miles putting in intervals of sprinting etc. How many are riding in groups to keep you sharp for that aspect?
What mileage have you told your coach you are doing and what was his reaction if you said 50?
If you are still working as many hours as you were when people had this discussion with you before and you were adamant that you were serious about competing and were riding as much as you possibly could then, what are you going to be able do differently now when the coach suggests riding more than your weekly average as a single session and then tells you what he wants you doing for training on and off the bike for the other 6 days?