Fantastic work on those conversions! Those parts fit together really well- I never would have suspected that Kroot could be compatible with Perry figs. Did you have to do a lot of trimming?
A bit of work ....
I drilled out the necks of the Perry zouaves and trimmed Kroot necks to fit, then greenstuffed to any gaps and reworked coat collars as required.
The biggest problem was the left arm. Kroot torsos are wider than zouaves, so I had to cut through the wrist and adjust arm position to fit between wrist and zouave shouldwe. Then greenstuff gaps as neccessary.
Kroot lower legs also had to be trimmed/angled in order to butt with the zouave pants to achieve a believable walking/standing position.