will a bimini of a 05 supra fit and 86 supra???

I was wondering if a bimini top off a 05 supra will fit on a 86 supra???

Not likely. They have different mounts and unless the boats are the identical width it won't fit. You could always have the bimini modified to make it fit but to think that over twenty years the bimini is the same is ludicrous. Go to a marine canvas shop and have them make you one, your local boat dealer will know which ones are in the area.