You should be able to use the “Render Plugin to Instrument” feature of renoise. But .wavs that are unfindable or somehow unopenable?? I wouldn’t know. Most packs I’ve downloaded that came with patch files for Battery, Kontakt, and 12 other sampler vsts had a separate folder with the .wavs in it accessible!
Edit: I also compose my own drum samples now with overtune 
there is gonna be a sample pack out pretty soon.