WPS500X Pressure Transducer kit

Hello all,
I am looking to buy the WPS500X Pressure Transducer kit, but not sure which one. They have two good ones, I am looking for some one that has it and would guide me to get the right one for me. The price difference is over 500 bucks but all I see is more fittings that I am not sure If it worth getting.
So the kits are:
PP939 $1055 www.picoauto.com/products/pressure-senso...ssure-transducer-kit

PQ038 $1585 www.picoauto.com/products/pressure-sensors/wps500x-maxi-kit

I already have a full fuel pressure test kit from snap on, not sure if fittings would work with pressure transducer.
As far as vacuum it seems that both kits has it.

Please advice,

Kind regards and thanks for your advice.

go with the pp939 the snap on kit uses a foster 2202 connector which comes with the kit