The LE version of SexLab More Creatures is seriously lacking in updates, and is no longer useable.

There's an updated SE version, but no matching LE version.

I took the ESP from the SE version and edited it so that it works in LE.

The main problem was water records in edited cells; SE has some water data that LE doesn't.

There were a few other little problems, but nothing significant.

When it came to the core content, there was no need to change anything at all.

The SE version works perfectly, apart from the ESP, and this fixes that.

Just install the SE version:

And then patch (overwrite) with this ESP:

SexLab More Creatures.esp

Installing this does require some assets for additional dog types and such, whether you're in SE or LE.

The dog model for the SE mod comes from Hentai Creatures SE. You could probably convert the SE mesh back to LE, but there's no need, the same model is also in the LE version of Hentai Creatures, which you can find in on the MNC SLAL edition (for LE) page https://www.loverslab.com/files/file/4130-more-nasty-critters-slal-edition/.

I didn't even enable the HC ESP, because I don't want all those HC spells cluttering up my game. I installed HC for LE and simply disabled the ESP.

This gave me the required dog mesh (it looks like an Alsatian).

If you're already using HC for LE, then you don't need to do anything extra.