Trying to try this out, having an issue flashing the zip in TWRP though. Has been "installing" for multiple hours now, with the progress bar very near the end for most of that time. Doesn't look like an error is occurring, just doesn't want to finish. I booted the 3.4.0 TWRP image from this post, rather than the 3.3.1 TWRP from the linked TWRP and Root for ... post.
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From my experience you need to first flash the TWRP version which is working for you in recovery, then try to install zip. Just did it on mine after I had same issue you mentioned and it worked like a charm.
However when LOS installed, looks like my display (X304F) is not aligned right or its density is wrong because it does not press where I press....
Hope this helps anyway, maybe you wont get the same issue I have.