Hear you on the kill knives, all these new ones on ebay seem to be cheap and all vary in sizes compared to the accurate ones by Drew and Claudia. It's a shame because it's the one tool I need to complete my kit!!
Though- I did message Drew a month or so ago and his response was "I don't have any updates and I'm not sure when I'll get to this. Probably not until the fall."
Don't want to push him anymore so I didn't ask anything else. Not much help, I know but at least he is thinking about it.
As for the cleaver only way I could think to replicate metal handle would be to sand and spray paint the black plastic one in a chrome paint to resemble the look... maybe I'll try it..