I've an Alvarez RC120SC that was reasonably priced and otherwise meets the criteria here. It plays more than decently, has the not-quite-classical width neck, looks nice, sounds nice acoustically. The built in pickup is no more than so-so but then I've never heard an under-saddle piezo that sounded very good with nylon strings. It's become my go-to guitar for songwriting and intimate performing.

I think if I wanted a dedicated performance nylon-string I might look at Epiphone's semi-solid body offering. I think it's called an SST or something like that and it's a less expensive version of the Chet Atkins model that Gibson used to make.

Btw, putting nylon strings on a steel string guitar will give intonation problems due to the slanted saddle on most steel stringers. Classical guitars have a straight-across saddle due to the different intonation requirements of nylon strings. Not that it is a huge problem!

the Insolent Lad
Enough small empty boxes thrown into a big empty box fill it full. ~Carl Sandburg