My Boxster now has new mirrorflaps but I didn't get them the way I expected. After putting it off for months, I thought it was time to stop procrastinating and pull up FreeCAD, but before making changes to my 3D model (again) I did a bit of on-line research and was pleasantly surprised to discover that inexpensive Chinese replacement mirrorflaps are now available. Ordered a pair, waited a couple of weeks, and popped them in when they arrived. Easy peasy and far less frustrating than creating my own 3D model and less wasteful than buying the whole mirror assembly from Porsche when only the flap was needed.
More on my mirrorflap project here:
https://rx19jones.wixsite.com/projectboxster/projectboxster7
cheers- dj
Broken original and Chinese replacement
replacement installed