Well everyone. I modled a nubbin. Only problem is, if the part that the nubbin goes into is broken (the little ears that hold it inline) then you will have the same issues. I'm in the works to modle that part and make it. Here is the nubbin file for anyone that wants to try and make it. I'm all about helping everyone out. I did mine out of high stress PLA+, id recommend resin or somthing more dense. Let me know if a anyone has any questions.
Cap_2.STL