I'd Recommend This One.
I picked this set up to modify. It's two figures for the price of most of MB's single figure sets. Sally is engineered with the skirt as part of her torso, throwing off my plan to modify her for the time being. Bob goes together fine. Detail on these figures is consistent with MB's other 1/24 figures. They are a little under-sized compared to other figures from MB but do build up fairly nice out of the box. That does offer you some variety. I'd recommend it for someone that planned to build it out of the box.
