Well that's all sounding jolly responsible now, and I do detect the early signs of optimism for success, with the weeks rushing by as we get to your personal point of no return, i.e. setting off from home for La Sarthe with the bit firmly between your teeth on two self-propelled wheels. Which is all a good thing.
For the dread "rollers", perhaps you should consider moving them inside, in front of the telly, when you could induce the appropriate consciousness state by watching something suitable, whilst training and dripping copiously on the lounge carpet. It will also remove you from the source of the guilt pangs that you are doubtless feeling, whilst the Jag scowls at you and plots her revenge. Just have to hope that she can't communicate through the ether with the Commer, otherwise you'd really be up sh*t creek, and would probably have more than a sore knee and nether regions to contend with. Good luck with the weekend's race!
MG Mark