Harness Swap L/XL for S/M?

I have a L/XL Dudek Paramotor Harness- Power Seat Comfort Low that I would like to swap for a S/M.
Has not been sat in besides for hang test.
Wondering if anyone out there would perhaps have a S/M in similar condition that they would exchange.
Would need to ship to Canada BC.

I sent you message

How tall are you?

165cm tall, 83kg weight, ideally 80kg.