Streaming Weapons is Possible, why has nobody released a script yet?

Private servers have personal scripts that allow for not just replacing weapons with another model, but full on streaming with inventory and weapon wheel functionality. Aside from no customization at a workbench they are good as any other gun.

Has any public developer looked into this? Are any willing to produce a script for it? Modellers would have a huge boost creating guns and melee weapons while whoever creates the script would have a guaranteed sale for every server. I’m just really confused why nobody seems to have done this yet other than dedicated private server devs.