@ruidx
Yes, it's possible. Actually nearly all G2/G3 high heels could be converted to G8 and the process is not that complicated as long as you know the right workflow. And you'd better know one modeling / sculpting software or at least Mesh Grabber tool in Daz, then the conversion wil be much easier.

I just converted it to G8F version. The heels are fully fitted to G8.XF and I fixed the base morph and JCMs AMAP. Pls download it as below and just dump the files to your lib. G3F version's shape and material presets could be directly applied. Let me know if there's any problem ~~
https://mega.nz/file/WL532Qrb#ZcgWeV0nmp4dqPgMw9I-zuhXsf9xkaoqhurbCyvCqps