Hi Miguel, I hope you are well. Like you, I am in Europe (Ireland). I have been successfully taking the Batch regimen for over a year now. I have found that the vitamins are very expensive here so I buy everything from iherb.com There is a 4 US dollars postage option for packets under 4 pounds weight, also this option is less likely to get stopped by customs (when they catch a packet, they sometimes ad custom taxes that can be quite substantial). If i need to order more than 4 pounds weight worth of stuff i just put in 2 orders. iherb is cheap and reliable.
This is what i buy from iherb:
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D3: 1 softgel/day or more when taking a loading dose
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This vitamin A tablet is 5000iu per tablet, so i take half tablet/day.
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Calcium 2 capsules/day
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Magnesium: 2 tablets/day
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B + C complex: 1 tablet/day
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Zinc: 1 tablet/day
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Fish oil: 2 softgels/day
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Boron: 1 capsule/day
I get the K2 that Batch advises to take at amazon.co.uk
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K2: 1 softgel/day
I try to take all of the above with the biggest meal of the day.
It is possible to reduce the amount of tablets by taking a multi vitamin tablet but i haven't found one that can match the regimen requirements. Batch recommends a multi vitamin from Costco, however that same multi vitamin on amazon.co.uk does not contain the same amounts of the vitamin and other supplements than the one that can be bought at Costco in the US, so i just take the vitamins and other supplemments seperately as per the list above.
All the best