You need 13 or 14 wpf / rank of PT. You'll still be able to equip them at round start, but you're only going to do base damage, as if you had 0 PT.
So you'd need 42 wpf? Depending the weight of your armor (which lowers wpf after about 9.0 weight), definitely more to be safe. Probably knock 2H down to 140, which gives you around 90 in throwing.
Might want to knock the build down to 18/18, max your riding and power throw instead of 1 more PS