Hey @anonym1337 Orders from german store aka digiwell aka upgrade humans, were just fine. They arrive for one week and they are delivered with speedy/dpd. The benefit of ordering from them is you do not have to deal with customs. For all orders coming from outside EU, you need to pay vat plus, import tax in case the order value is above 150 euros.
On the install side of things, if you can afford it, go and visit Arnulf in Köln. For x series, you might find someone here, but for the flex, I would not risk it. You can check some of the experience I had with the xmagic here
If I were you, I would just buy whatever implants I want and fly to Köln to get them installed on one go.
Also I do not think there are any apexes available at digiwell. Options for you are either ksec or order from US store of DT. Both options include paying vat and import tax 
Which city you’re living in ? if you need more info you can dm me and I will help you with whatever I can.