I do not have Skype...but feel free to put as many pictures/information here as you like, I log in most days and if I can help I will try.
If those are the parts recommended in the manual for fitting an alternative engine then I can tell you that the newer engines also use the same mounting dimensions...not much has changed over the years.
I am not familiar with 3D printing but presume the material would not be strong enough.....If you have a metal working shop at school then it would be a nice little project....you have pictures available and with some measurements you could craft some mounts.