Cragar SS sbp non uni-lug wheels

So I scored on a set of 14" sbp non uni-lug Cragar SS wheels for my 72' Duster w/o any lug nuts. I'm being told that I need washers & lug nuts to install properly, along with re-torque every few weeks. With that being said, which lug nut style looks the best ( so many styles....tall & short) & is it really necessary to have washers behind them?