I know ebay is typically a no no as far as fett stuff is concerned but there's a guy from Argentina that is selling metal shin tools and toe spikes that look pretty good. Some of the other items look a little... eh.. but I actually pulled the trigger on said metal parts and will let you know when they arrive of you'd like.
I made parts out of my real parts I purchased and made my own stylus brushes out of a xacto knife handle that is pretty close to the specs. I have TONS of casts I made and aside from the sonic beam weapon (can 3d print one though if needed) I could sell you the other parts shown in the photos for pretty cheap, they were cast in smooth-on 300 and just need some work to look good.
The original bits are really cheap otherwise. I got the meal styluses from Machinecraft on here, the rest was as per the original. The metal tube I just got an aluminium pipe off eBay and cut it to the right length.