Can you ID These Mystery Parts?

[dholly]

Hi all,

I've just wrapped up an exhaustive parts inventory on two new kits I'll be listing for sale soon and have a few mystery parts I can not identify. Can you help me please?

In the first two pics are four parts that I believe may be part of the 'Model 4 Retrofit Control System (19065) To Model 3 Aircraft Serial #'s Less that 1400 Kit', ordered from Denney Aerocraft in 1992.

Note that the middle two tab brackets are shaped similarly, but meant for different size tubing. Note also, the top two items do have parts numbers taped to them, but they do not correspond to the kit Parts List nor can I find any reference to them.

Looking at the Parts List for this retrofit kit, my inventory process suggests that the top three parts in the pics may be 'New Part #'s 2.2 or 2.3, but I don't know which is which. I have no idea what the last part is for or it's part #.

Does anyone have a pic of part #12006 and/or know its location/use?

Last, what is the aluminum cylinder with threaded end openings? Marked as Part #35013.000, I can find no reference to that.

Thanks for playing "I Can Name That Part in _?_ Minutes!"