I think you've got a good approach going so far and have gotten great advice, but I will share a few things that I learned are vital in hindsight.
1. Support your unavoidably taxed adrenals with tons of vitamin c and increase it as your mileage increases as well as plenty of salt, as it is required to for their adequate function. Keep potassium levels in mind as well, as you will definitely need more than during non-training time.
2. Magnesium depletion can be your worst nightmare - supplement very generously. Most people who are not already supplementing with a good amount are quite deficient and this contributes to a host of problems. This will help combat the expected inflammation that affects much more than just your muscles. Supplementing with MSM is also a very effective way to address inflammation unless you are able to obtain a good amount of sulfur through your diet, which you hopefully are. (Glucosamine is a friend as well)
3. Keep an eye on your zinc and copper levels as well, as mineral absorption is affected by the depletion of magnesium.
4. Supplement with vitamin D if you aren't able to get regular sun exposure - and even if you are.
5. Stay as hydrated as is humanly possible.
6. I already know you're not in agreement with this one, but I would never do it again without taking 2 days off at the very least - skip even the 20-30 minute slow, easy jog. Overtraining is a much more formidable opponent than many people realize until it is too late, and it doesn't just affect your training, but can affect your overall health - quite possibly for a long time.
7. Kick butt and consider coming to the states for your next one. The experience of running the Golden Gate Bridge is one you'll never regret. Unless there's an earthquake that day.....but that's just an even better adrenaline rush!
Life is not a matter of having good cards, but of playing a poor hand well.
- Robert Louis Stevenson