RD400 suspension parts value question

[Vintagetz]

I have a complete RD400 suspension setup.  The forks are from a race bike.  I did not do the internal work, they came on an RD250 racer I purchased, it was professionally built.  We ran it at Daytona Ahrma in the Mid 2000's and won the Daytona Ahrma race with them (they work well) it is Forks, clipon's master cylinder, caliper SS Line Triple clamps Axle and spacers for a 350 spoked wheel.

Legs need to be polished, new seals and fresh oil.

I also have a complete rear swingarm, caliper bracket and caliper setup.

would be great for a 350 Disc conversion bike.  I struggle to price it, want a fair price, the calipers need rebuilding and it all needs a good clean up

Can anyone throw a dart at a fair value?