Which components from the original iPad mini are forward compatible?

Hello,

I have a fried iPad mini 1, logic board issue, no power whatsoever, and am considering buying a mini 2 motherboard so I can salvage it and make it realitivly usable again.

[read as 'want to build Frank-en-iPad']

I am curious as to which parts from the original iPad mini would be able to function normally with a logic board from a mini 2, just from looking at the logic board I can see that the battery connectors are different as well as the power, volume and vibrate switch connector.

Will the antennas, display, speakers, cameras etc function normally with the Mini 2's logic board?

Any help greatly appreciated.