No, not so much. I think you need to keep in perspective what it is that you are trying to gain. Why not buy a set of springs? Then maybe emulators? And once you get all that more or less dialed in, see if the bushings need done.
For my RD350 I mounted FZR600 forks. My oem forks were shot. The FZR units cost $100 with brakes. I got more rigid forks, better brakes, and they are lighter. It took a bit of work though. Since then I have tested Racetech Emulators, YSS PD Valves, and the Taiwanese knockoffs of the emulators. The suspension isn't just good, it's great, especially for a 40 year old bike. So again, keep perspective on where you are going to find gains and pick the lowest hanging fruit first.