No, you don't. Change your views. This is not any game. This is Deity. You won't research BW, they will research it for you.
The only way to keep the pace is to trade. So please, really, beeline to Alphabet (or CoL-Alphabet if you can get the religion and be first or second to Alpha). Please, do, I would like to see you winning a game this Gauntlet.
I don't chase the fastest beeline to Alphabet, but the most useful one. You have 2 pigs? then through AH. You have cottageable land? then through pottery.
MapFinder is mandatory if you want to be the best player in this Gauntlet. If your goal is "just" to win a Deity cultural game, then you don't need it, any good start will do. If you get a bad starting position... I don't know if it is winable, why not regenerate?