De-Frocked Priests

I recently painted 4 of the Italeri m7 priests as the ‘defrocked’ kangaroo and I would like to use them in a game. There are stats for a Ram Kangaroo in Overlord but not for the Priest Kangaroo. Would there be any differences in speed and armour to a regular m7 Priest? Was extra armour plating added?

Also, the Ram Kangaroos are in the specialist vehicles section rather than as an option for mounting the platoon. I know that kangaroos were only used near the end of Overlord and so would be restricted in a game but would it be ok to have the option of mounting an infantry platoon in de-frocked priests? What would they cost points-wise?

Thanks in advance for your help.

Use the Kangeroo entry from FotR as it is adding it to the specialised list. Make them open topped armoured vehicles. Use the armour ratings on a Priest.

Thank you.