Comment 1 for bug 1607725

Regarding the wheels: it's unlikely that someone will make those available, but I'd never say never.

Regarding the crash, your whole setup seems rather brittle: MS-Windows + PyPy + emulated C-API + lxml + extremely old versions of libxml2/libxslt + mix of 32/64 bit architectures. I'm not surprised that you run into crashes. I don't know how well supported PyPy is on Windows, but I know that the latest major changes in their C-API emulation are still rather new, so there are definitely bugs. And the old library versions are also not very reassuring.

You can at least get newer (unofficial) library versions from the URL referenced below, but I don't know if they work with the PyPy version that you are using:
https://github.com/lxml/lxml/blob/master/buildlibxml.py#L42