Upgrade and Invest in Rega P2 or P3

Apologies for slightly long story here. 

I currently own two Rega turntables. 

1) A P3 which I purchased in the UK and runs on 230v. As I am now in the US i have been unable to use this. This has a Rega Elys (purple) cartridge but is otherwise standard. 

2) A P2 which I purchased several years ago in the US and has had several upgrades including: 

a) Mitchell Tecnoweight Counterweight (seehttps://www.vinylengine.com/michell-tecnoweight.shtml)

b) Incognito wiring upgrade kit (see https://www.gcaudio.com/products/incognito-rewiring-kit-for-rega-tonearms/)

This P2 also has a Rega Elys 2 (blue) cartridge fitted and a spare purple Elys cartridge. 

So the question is should I just forget about the P3 and not try and sort the voltage / power supply issue or will it be worth the effort? If the latter might it be possible touse the power supply from the P2? And then might it be worth pulling the various other upgrades off the P2 and putting these all onto the P3 and really going to town.Lastly, I would not be able to do all this myself so would need to find someone to do this (Washington DC area). 

Any help on the questions above and advice would be most welcome. 

regards

Andy