Another thing to consider is when does it stop becoming a Venom rifle.
I had a .22 HW77k venom stage one tuned, with a setback trigger and cocking grip - purchased direct from GunBarrel Ind. Estate. I used it pretty much daily and sold it on to a mate of mine, years later, when I bought my GC2 and FT shooting took over my life.
My mate used the 77 to death and replaced the piston seal and spring time over. It was still in his collection when he sadly passed away, tens of years later.
So the only thing remaining of a genuine Venom rifle, would be the setback trigger and the sticker.
So even though I purchased that direct from Ivan and Dave, if someone else opened it up today ( if it still exists ), they'd be met with a non period correct piston seal ( they were grey coloured back then ), an aftermarket spring and a sticker - this would most likely be classed as just another 'fake' - but is it really fake?
Put on heading 270, assume attack formation