Fulfilment centre or do it yourself?

Hello hello!

Question. We're just starting up and have a raw material supplier in the UK + a packaging supplier where we're still deciding between 2 options. 1 in the UK, 1 in Hong Kong.

Right now I'm searching for the efficiency vs costs options.
- to either let each individual supplier send it to us in Norway and pack it up ourselves
- or to send it all to a fulfilment centre in the UK and have them fill the bags for us and then ship all the filled bags to us in Norway

Actual shipping/doing orders will have to be done by us for now since it's more convenient to get it all through customs in 1 go and transport will be a lot cheaper.

Let me know if you have any ideas and thanks in advance!