RID Optimus parts needed

Hey, i'm building an MP Inferno based on the wonderful on that Stencilator did, and i need the ladder and swivel off of an RID Prime, but i'd prefer not to have to buy the whole thing. Any body?
SEIBERTRON - Your Planet For Everything Transformers
https://www.seibertron.com/energonpub/
https://www.seibertron.com/energonpub/viewtopic.php?f=36&t=31394