instead of swapping forks, you might try replacing the master cylinder. The stocker is located under the gas tank where it's currently leaking all over your frame top tube and rusting it out. The cable from the lever to the M/C is spongy, and doesn't help with the feel any. Get a handlebar mounted Magura M/C from any dealer that sells Parts Unlimited and a braided line, and you will be much happier with your brake.
I did this on a R90S I owned years ago, and it made a world of difference.
Loose nut holding the handlebars
He’s one of those who knows that life is just a leap of faith. Spread your arms and hold your breath, always trust your cape. Guy Clark "The Cape"