Dynamo Lights

Hi. New job means a new lengthy commute on unlit country roads so I'm planning to add a dynamo light to my setup. I have no experience with dynamo lighting. My current plan is:

SP SV-9, or 8

Supernova E3 Pro 2 front light
Supernova E3 tail light

Is this reasonable? Will the SV-9 power both lights?

I notice the Supernova E3 Pro 2 can be had for £65 with 'no rear wire' or for £140; is there a way to wire up the rear using the cheaper version and save £75? Would I need anything extra to connect the light to the dynamo?

Can I mount this light with normal calliper brakes?

cheers>

SP 9 are lighter but only 2,4w at 15kms/h (9mph), but it's enough to supply energy of both lights without problems

SP 8 can generate 3w at same speed so is better for low speeds or to recharge electronnics with a plug converter.

Yes, the front focus can attach on the brake calliper.

Cheers