That fuel should be fine if it will run well in other engines. I would never run coleman fuel because the octane is around 50, some do just not me.
50:1 ratio of good quality synthetic oil would also be ok for the BME.
As for the 97 octane, I believe you use a different rating system over there so it is not that far off from our 87 and should work too. Keith said running higher octane on standard mufflers would only increases temps and gain nothing so that is why he recommends 87.