Was jealous that the metric remix (wigglememore) had sleeves and the original Hadley did not.  Remixed the sleeves for the UTA and Middle Assembly.  No plans to do the LTA.  I am currently using the mirror holder from fortinmike.  If there's enough demand, I'll see if I can make one.

Installation for the UTA will require bending the hole a little so that it can slide over the bottom rim part. It's flexible enough with PLA to stretch back into place once everything is in.  Should be a very tight friction fit and shouldn't require glue. 

Middle Assembly Sleeve has a slight lip for the chamfered edge. ie insert from the LTA side. Also should be a very tight friction fit.