Finding 1 ¼ inch pipe in the UK?

I’m looking for somewhere to buy Speedrail, 1 ¼ inch scheduled 40 aluminium pipe here in the UK or if not the EU. It’s been a struggle and as of yet I’ve had no success, it’s not something that the usual metal suppliers have in stock and I don’t know what the cost of ordering from the US will be but I doubt it’s pretty.

Has anyone sourced any of this pipe here in the UK or know of somewhere they think I could try?

Is there something soecial about ‘speedrail’ ? Wall thickness ?
What about https://www.ebay.co.uk/itm/Aluminium-Tube-1-1-4-30mm-od-x-1495mm-2-END-CAPS-/280372248981?hash=item41477d0195 ?

Ahh I see 1 1/4 is the internal rather than external diameter

This listing shows steel pipe in nearer dimensions to schedule 40 , and the seller seems to also provide fixings.
https://www.ebay.co.uk/itm/Tube-42-4mm-O-D-Scaffold-Allen-Key-Handrail-Tube-Clamp-Fitting-Galvanised-Size-3/173266073165?hash=item285776764d:m:m7h6fXfr6pt_cctQ2wRlzoQ

Or http://www.doughty-engineering.co.uk/shop/26/index.htm