Data plus Canadian calling (multiple SIMs) - Paris

[PhotoJim]

Hi,

Looks like our first France visit will be in May 2015. We'll be spending the prior week in London so hybrid dual-country solutions are also possible.

Here's what we likely need:
- 2 iPad SIMs, 1-2 GB each - we use these in the field so we don't want to depend on WiFi
- data SIM (so I don't need to buy hotel WiFi), 2-5 GB should do; I'd consider tethering devices to one of the iPads but it's not my favourite solution. I have a lovely TP-Link mini-router so I can use unlocked data sticks I already have (3G) or buy a local LTE one (my LTE ones don't likely support EU bands).
- 2 voice SIMs, could just be voice/text but better if they come with 200 MB or more of data. We prefer something with direct, cheap calling to Canada (we paid 6p/min in the UK last time to call home which was great).

Suggestions?

I speak French so navigating websites shouldn't be a big problem. Si vous êtes mieux en parlant français, ça ne me dérange pas si tu veux me répliquer en français.

Thanks in advance!

Jim