Converting from UK power to US power


I found a used Musical Fidelity A3.2cr amplifier for sale in England that I would love to have because it’d be the perfect mate for my Musical Fidelity A3cr Preamp.  But it’s wired for English power.  I’m told I’d have to get the transformer rewired.  Anyone know how complicated and expensive this might be to do?

The other option is to buy a step up or step down transformer and plug into that.  That sounds fraught.  

Opinions most welcome on either of these options.  
128x128echolane
“IF” is the big word.  I finally decided it’s too risky.  It’s priced fairly high for a nearly 20 year old amp at $660 or so.  On top of that it’s heavy, quite heavy, so postage from England will be pricey.  Then paying a tech to do a conversion adds more to the cost.  I’d do it IF I knew for sure, but even as a sure thing, it’s a pretty extravagant purchase.
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@echolane I think that's a good call.  Nice amp, but outside of someone buying it because it's their destination piece, it makes sense to not invest in it.  The best move is often the one you don't make