Bob , I have used the TX802, TX7 and the TX81z...My least favorite of these is the TX7...The best one is the TX802...The one I got the best results and fun was the TX81z..I used two units that were in alternate for 16 voice polyphony..It was only 4 operator but had neat multi timbre parameters..

Quality wise...go for the TX802..I don't recall any effects you mention, but it is a workhorse...

Another consideration may be Native Instruments FM [soft synth]..