this isn't sounding good...i have never had issues dealing with banzai, but this just sounds like all kinds of trouble.
Bent forks on a auction bike = totaled bike. You really need to check to make sure it is 1, it has a legitimate clean tile, and 2, that the title matches the bike.
Double check again all the parts that stick out to look for any other damage. Check the foot pegs, the bar ends, the low parts of engine covers, if any of it looks damaged or repainted/ repaired, call the lemon law on it and get out of the deal. It is very likely this bike was crashed, totaled, and then sold as a salvaged bike at auction.
i also agree with the poster above that if they need 4+ weeks to get forks for that bike, it is likely they are trying to find used ones. Maybe they are waiting for an auction on ebay for them?
You can use the fact that it is a safety risk if necessary to get out of the deal and get your money back.
I hope all goes well for you, but at this point don't be afraid to get your money back, and walk away.