Just play Ma Chao and get 4th weapon. I'm still testing if LingTong+ZhouYu, Solo Ling Tong, Solo Tai Shi Chi, or Solo Ma Chao is the fastest. But in my testing they all seem like they can all possibly get in the 24-26 minute mark.

I missed that you can grab a horse on Bai Di Castle from Zhou Tai. Also a few bad fights and my item luck was not good. So this should get beaten easily. But getting the ball rolling.