Last year I had 8 HIgh5 caffeine gels in one water bottle, topped up with water (240mg caffeine, 184g carbs) and isotonic drink in the other. I swapped the iso drink bottle at each station, the one with gels in, I drank in stages (25, 50, 70, 90 miles approx.) so had a 60mg shot every hour and a bit. Flat coke for the run, plus a couple more caffeine gels near the end. Seemed to do the job quite well.
I had the same dilemma this morning. Wanted to do a four hour bike, but with the weather as it is, chose a 2 and a bit hours on the turbo. This time of the year, you are not going to be able to do every session planned due to weather, sickness etc. and you should factor this into your plan. The odd changed or missed session is not going to make any difference come race day. Intervals on the turbo is my advice. If you opt for 2hours on the turbo, you will do 2hours turbo. Head out the door tomorrow and take your chances what you get.
+1 for taking a caravan. Took mine to the Outlaw this year and it was perfect. No waiting for showers after race, can store/cook anything i want. Same again next year, plus going up on the Tuesday for the half and chill out for the days leading up. Just an idea, if funds allow, could you hire a motorhome for the weekend.
Yeah, i bought the hoodie. Nice quality, if a little pricey at 38 quid. 11 bottles, bit funny. I messed up the last drinks station and didn't finish with any Outlaw bottles, so at the following days prize giving, i asked someone loading up the bottles into a van, if i could have one as i had messed things up and didn't finish with any. They practically begged me to take a whole box (100 ish). I settled for a dozen (the wife gave one away (she doesn't quite get the whole, you have to earn it thing)).