titanium push rods

[PittsS1S]

I wish to use titanium or even carbon instead of steel for all my Pitts push rods.Original is 4130N 5/8" x .035".It seems that titanium is more flexible than 4130N steel,so i could use 3/4" x 035".Carbon is very stiff.The big deal,is how to fix the parts where the bearings are bold at each ends of the tubes;welding or rivets for titanium tubes,glu or rivets for carbon tubes;if rivets what kind.And is there any corosion between bearing and titanium.
Jean-luc

 

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