I see there is no possibility to use DSPFX pack as native plugins in SAWStudio...even with JMS linker.
But at other side there is no pity about it.
this pack is one of my favorites too and I'v tested it in SAWpro comparing "SAW" and DX versions. I made the conclusion it works more suitable when through DX mode. No one advantage when as "SAW" mode.
Use it as DX!