I just want a simple bathroom fan, with an extract vent (no light,
just vent) in the bathroom ceiling, the fan itself in the loft (less
noise hopefully), and the exhaust vent on a soffit (or, because crawl
space down the edge of the loft is a challenge in our gently sloping
roof, in an external wall).

Has anyone found a Vent Axia kit, or do people buy the parts
separately?

If separately, will extract vent, exhaust vent, ducting, in-line fan,
and duct tape do the job, or is there something else I need?

Cheers,
David.