Custom/Hybrid Urgent prop question

we are trying to throw my brothers BOB together to ride tom and he is waiting on a prop. his specs are below he is waiting on a new prop but wants to ride on one of the spares i have any advice on which to run? i have a skat 4/7v and a solas that shows this? any advice is appreciated i know neither of these are ideal but is having a big hub solas pump and a small hub prop an issue?
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BOB GEN 2

Kawi SXR motor 83mm pistons (801)
Freestyle porting
ADA head @ 185
Dual Buckshot 46s
VForce 2s
MSD Total Loss
Factory Pipe

Pump
Yami Pump base
Solas mag
Xmetal trim
85mm bored nozzle
 
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