Work to do, questions to be answered

With l’etape now less than three weeks away I am panicking about numerous things. I am worried about leg strength, think I have the endurance after the Hampshire Hilly Hundred and the Dave Lloyd but I just don’t have the strength on the hills. So have resolved to do a lot of strength work before then. The down side with this is that each time I try a power session I turn less and less watts as I am still tired from a previous effort. I must do some more research and see if this is a problem. Nutrition is still a problem.
I have given up on flapjacks and oatcakes as I just cannot digest them on the ride which means I don’t eat them. Mars bars seem to go down well but I am not sure of the nutritional value so will check. I have tried Mule bars but two of the types don’t appeal, I have two left to try. I am also considering caffeine as part of fuel. This is common as it aids synthesis of fat to energy but having avoided caffeine for 3 years now I wonder if it is wise to take a slab before riding. I shall try it out over the weekend and see if I have any problems. I need to take in around 120grammes of carbohydrate per hour and am working out the best way of consuming that: 1 gel (60g); 1 bar (40g) and 500ml of energy drink per hour should do it along with the emergency Jelly Babies for the Ventoux!