Patches and discussion for Ensoniq VFX family

Hello Group 
I have 2 VFX-SD's that were Factory conversions to SD1-32 voice. I used to work at a music store and I know the factory came up with this upgrade for about a year. One burnt out and I shipped it to Thesonq. Unfortunately for be I was ill for a while and by the time I contacted him it was used for parts. I don't use the other two because I know they were very rare even when the conversion were done. Other than buying Rte 66's e-Cooler (doing so anyway for live)synth does run hot,does anyone know what other issues there were. Should I replace power supply with a 32 voice supply. I don't want to burn out these last two, rather keep them at home and use my other 32's live.
Thanks
Mark