OEM parts( pin, rod, bearing and washers) to rebuild your crank are available Id go that route.
No hotrods I know of possibly a NOS Vesrah kit out there but, OE is the best choice. 

And as far as I’m know, there aren’t any options to choose from.  It kind of suck, but this is a problem you are going to come across for almost anything aftermarket on an 85’ or an 86’ model.  It’s very limited.  I don’t know if this will help you but there is a man who can build a hand coned,.. hammered pipe.  He can build a heat shield for it too.  All for around $600.00.  Now that’s a raw pipe price.  The heat shield and finishing is extra.  If you can afford that, you will have something truly special.  Pipes for these two years are very RARE.... the only pipes available are oem and fmf.  The guys name is Kenny Roberts out of Southern California and all he needs is a 85 or 86’ model to build the pipe.  Fmf isn’t that bad but I think there is a better option if you can afford it.