I rather like this version, from Seabound:
https://www.mobileread.com/forums/showthread.php?t=34777
It's in LRF, but it's converted really nicely in calibre to mobi for my kindle. Would imagine calibre would also do a nice conversion to epub.
HarryT's version is also nice, but I found that converting the epub version to mobi in calibre worked better on my kindle that the mobi version you can download on-site. That gave me the chapter skips, whereas the on-site version doesn't.
As for paid versions, I've found that the Barnes & Noble classic series are really good.