I know just what you mean, I lost one when turning one of the pitch links over.😡 much-o frustrating-o... Somewhere else is this forum somebody addressed this issue with an excellent plan of attack, I AM SO NOT TAKING CREDIT !!!!
But, their suggestion was to work inside a gallon sized ziplock or freezer type bag. I tried it and it worked like a charm, kept the e-clip, "jesus clip" inside the bag when it inevitably flew off. I retrieved it quickly and got it on. Hope this tip helps you out and good luck on your build... P.S. Thanks to the anonymous tipster, sorry I can't give proper credit if you're reading this. 👍😃