No, that's not the lathe I have. It's a Techtongda 8x30.5 with 1 1/2 inch spindle bore ....
probably can’reconstruct it but believe I followed google to the techtongda factory or one of the jobbers & back out to similar lathes with the reference to that manual.
Either way, it is a MT5 socket spindle with flange mount. If yours is similar, the options are too.
How hard is the spindle?
can it be filed?