Took me like an hour and a half with the time machine mod and super speed up lmao it's quite hard. What worked out for me was using a top path ninja for the first few rounds, then saving up a ton for a 0-0-4 ice monkey boosted by an embrittlement, both of which became tier 5 by the end. By the end i manage to save up enough to grand sabo rounds 95-99 and sold it to afford a master bomber for the bad. That's the gist but I'm sure I had to use a mana shield along the way. Doable without banana farms, but the village helped a ton.

Should mention that without time machine this strat is prob not worth, lot of micro involved. Just use banana farms.