Well, the board actually looks quite weak to me. The best BM is either Bridge or explorer, eventually going for remodels, I think, but this is pretty terrible. Of course it can pick up festivals on $5 and should.
I am not so sure about hanging on a mega-turn engine here, and I doubt your ever getting to the point you are drawing your deck like a traditional engine. There is no draw, apart from the weird pseudo-draw of herald - not even a moat, which would clearly say engine to me, as most everything else is there on a board with no good BM. However, I would probably try something with remodel into several bridges, probably a couple of early oases, hit festival a few times on $5, and eventually head for heralds. I don't really know whether this would work, but I guess something along these lines is best. I don't know about navigator - it potentially lines up heralds, though, so it might be nice. How good is that? Not sure. I would go for something engine-ish, anyway.
Okay, now to read the log. Okay, wow, it worked better than I expected. A LOT better. More heralds faster than I expected, but I guess this isn't so surprising. And of course, Stef pilots it pretty expertly on his first time with the card - color me unsurprised.