Hi WN,
thank you for your suggestions.
The problem is there are so many standard sections & the concat node is limited to 6 inputs.
I have made a manual input nod file as Pilou suggested for now please have a look.
I have also modified the positioning of the profile in the 'Y' axis as just moving in the 'X' did not clear the bounding box
when a path is just a straight line on the 'Y' if that makes sense.
This applies to the Pipe tool as well so will update my post.

Pilou,
have made the rotation +- 180 and now a manual input for profile sizes.
Many thanks to you both.
Cheers
Barry