Low
There are only a handfull of 0320 / 0360 J5 Austers about. Certainly none for spares reclamation (I think the last one completed only flew last year, based on Anglesey).
The J5's with 0290's are very different, lacking larger tail surfaces, struts and the engine frame is different.
As for the man Kirk selling an Auster. Would this be his old tugmaster,6. ?
If so and you REALLY want to know about it. Send me a PM, don't want to disclose in public.