Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
If you're after leather NOS trim, try obsoleteparts_australia ebay store,a division of Eagle Auto Parts items - Get great deals on items on eBay Stores! I bought the grey statesman leather door inserts, Monaro gear knob & the gaiter. I've yet to ask them if their NOS leather seat covers fit a standard seat. You might find some other goodies there. Delivery took 4 days.
Lol trust me when you pay $400 for a small plastic trim piece for a Suzuki grand Vitara, Holden NOS are dirt cheap & yes the wreckers are even cheaper.
I'm amazed that your boot doesn't automatically open every time you have the stereo on lol