Revisiting Step Down Transformers (220V to 110V)


Well, I am excited to be moving my family to Germany from North America.
With that said, I have been googling, reading, re-googling, asking vendors, etc.. as to what I should do with my equipment.  
I have also read previous posts - none of them had very clear decisions. 

I have an AR VT80SE, Mark Levinson 526 and Dual Rel Acoustic S510s to deal with.  Everything else is easy.

I've calculated this to about 2000 watts for the system.

Questions:
1) Do I just buy a 5000 watt step down transformer?
2) Does anyone have any models that they've used?
3) Is something like this https://www.tripplite.com/5kva-5kw-step-down-isolation-transformer-208v-120v-2u-rack-mount-l6-30p-5-... Overkill?   
4) I can also get all of these product rewired for 220V for about $1000, then another $1000 when I come home.  I am not sure if that is good money spent when I can get a transformer for $300 - $500.

I know it should be balanced - dual core.   Interesting on how many of these specs are clear on the web.  You also can't just run our to Hardware Hank or Home Depot and pick one up.   

Thanks
rrodell367

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