I have a R3 rolling chassis with all the spares that you are looking for that I would be willing to sell. I have spare mid-span and long span arms, but want to keep them with the kit. I currently have a font diff in the car and keep the one-way as a spare.
I would be looking to get $200.00 for the rolling chassis plus the spares.
Let me know if you are interested and I will get you a complete inventory and some pictures.
Thanks.