Export Fender type Power Transformer / Selector 50W Amp

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I built a buddy a 50W BF Bassman type amp about 10 years ago, which has a Hammond 290DEX power transformer.
Now he's looking to travel and wants to take the amp with him, so needs worldwide voltage taps - the 290DEX is just 240V primary.
The Mojo 762EX looks like it would do the job but it's out of stock and he wants it sorted within a month.
Mojo Transformers » Blackface Bassman, Super Reverb, Vibroverb, Mojo Pro/Super Power Transformer (Export)
There's a Classic Tone one, but that's just 240 or 120, and I think that a 220V tap is needed for most of Europe, otherwise all the secondaries will run low.
http://www.classictone.net/40-18029.pdf
Also I'll need a suitable voltage selector switch; not many options on this.
Mojo Switches » Marshall Style Modern Voltage Selector Switch
it only seems to have 3 settings; may be sufficient but rather pricey.
Can anyone suggest options for the above parts, ideally UK/EU but no problem if not?
Cheers - Pete.

[Pilsener]

The European countries agreed some years back to go for 230V line voltage.
Here in Norway I have 230 V at my outlets now.

However, 10V equals less than 5% difference, and is not more than you would expect if you measure the line voltages at different places around the same city, so the 240V setting will not cause any problems anywhere in Europe.

[J M Fahey]

Here in Argentina we have classic 220V, never "upgraded " to 230V, and everybody runs his USA equipment on the 240V tap with absolutely no ill effects.
You can notice this on the bench, but not by ear.
So, in a nutshell, use a 120/240 primary without worries; switching becomes simple too (the classic "110/220V" slider).
Remember that even in the US you don't have exact 120V in many places, yet nobody complains.
Just my 2 cents.
Make them Euro cents, so they are accepted in Europe, he he.

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Thanks guys.
I managed to source voltage selector at TAD and a Mojo762EX at Solsound on ebay UK; it fits fine and all is good, except that the heater voltage is 7.4V at full output, 7.5V no signal.
Rechecked with another fluke with a traceable calibration.
That's the highest I've ever seen; should I query it? Pete.

[Steve Conner]

How heavily is the heater winding loaded compared to its nameplate rating? Small PTs have a higher impedance heater winding, so the voltage can soar if it's not loaded heavily enough. In my last build, my heater voltage was up at 7.2V because I took out an ECC83 and an EZ80 rectifier from the original circuit. I ended up adding a cement block resistor in series to bring it down: about half an ohm.

Also, what's your mains voltage? If you're anything like the UK, it will be 230 going on 250.

[pdf64]

Sorry, omitted the vital info that line supply was 244V. The primary has taps for 240/230/220/117/100; I've proved that I'm connected to the 240 tap because the other taps are reading the expected voltage on them (plus a tiny bit as I'm over 240V).
The PT is for a Super Reverb which has a couple more pre-amp tubes but the heater voltage was hardly affected by having all or none preamps in there.
I've emailed Mojo with the details for their opinion. Pete.