PC-6.com says it was used to rebuild s/n 551 (Astazou and then PT6 turbine Porter) which matches Tail Wheel's memory.
s/n 551 was a PC-6/A-H2 (originally piston, converted to Astouzu, then PT6) rebuilt in Switzerland, so my memory may be correct. Amazingly, s/n 551 is still operating and now has a PT6A-34 engine.
At one stage the undercarriage from the piston Porter was installed in the Talair turbine Porter, after that aircraft was ground looped at a strip in the Chimbu.