Hello itech,
welcome to the ECF. Everything you'd ever want to know is in here

And a bunch of friendly people is ready to help you out with any questions.
The easiest is to stay within EU for supplies (customs and VAT).
For DIY, the FA (Flavour Art) is good, <
link here>, but expect delivery time of up to 3 weeks...
Look in the DIY section of the forum, video's and sticky's available to guide you. The advantage of DIY is that you will be less vulnerable for
juice shortage, one reason or the other....
In UK there are a number of suppliers, TW and LF are some.
This one, <
link> is UK based, with free shipping.
Also free shipping, this one :
<link>
I have tried all three, no problems to report
Check out in the forum, more (EU) suppliers available, too.
Do tell what you choice(s) are... You will need 5 post/replies in total to be able to post in other sections of ECF, btw.
Happy vapin' - det är bara bra...