I did two Addo 82 km, the Two Oceans, IM then Comrades. You simply need to cut back a lot on the cycling and run a lot and swim occasionally. Running benifits cycling much more compared to cycling benefitting running. Typically I would run 5 days a week, cycle 2/ week (40 km then 70-105 km on Saturday ) and run 90 km per week (15 on Saturday and 30-40 on Sunday ) I will be doing it this year again, except oceans. Remember, when in doubt, run. Good luck
