Aero bar mounting hardware

I just purchased some 3T straight extensions and need a way to mount them. I’ve been searching the internet for a place to buy just the clamps that attach the extensions to the base bar and have come up short. I’ve been looking for some old T2+ bars that I could get somewhat cheaply but would rather just buy the hardware if possible. I would be open to clip on systems like the Hed’s or the Deda clip ons but they’re even more expensive than the T2s.

Also are there some other armrests that attach directly to the bar like the T2+ pads?

Oval makes such a part.
http://aebike.com/product/oval-concepts-a710-31.8mm-clamp-set-includes-clamp-with-bolts-only-sku-hb7065-qc30.htm

any shop with a qbp catalog can get you the parts, or check out an internet retailer that just resells qbp direct (like aebike I think)
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I just purchased some 3T straight extensions and need a way to mount them. I’ve been searching the internet for a place to buy just the clamps that attach the extensions to the base bar and have come up short. I’ve been looking for some old T2+ bars that I could get somewhat cheaply but would rather just buy the hardware if possible. I would be open to clip on systems like the Hed’s or the Deda clip ons but they’re even more expensive than the T2s.

Also are there some other armrests that attach directly to the bar like the T2+ pads?
If you already have the 3T extensions how about the matching mounting hardware? http://www.treefortbikes.com/product/333222360774/599/3T-Clip-On-Team.html

Easton sells the bar mount separate, but it’s still $100: http://www.trisports.com/eaaemod.html
It’s pictured with the extensions, but they don’t come with it. No clue if it fits.

Thanks for all the responses.

I was just looking for a super budget build since funds are a little low. I was hoping that some company’s mounts were sold for a little cheaper but it seems like none are. I guess my plan now is to just find some old T2s for somewhat cheap and cannibalize them.