I may be able to supply, but there are more than one steering wheels for 140s around that time, also not sure exactly which part you need. If it helps clarify, any chance of a digital photo of your wheel - send to
paultill@tesco.net if it is easier.
However, postage from the uk may not be cheap: have you asked "Arcturus" on here (in the Amazon/PV section) as he comes from Sagres in Portugal and also has a '69 144 so might have a spare.
Paul
VOC 140-section registrar