Glad to hear that you fell in love and will be keeping this one intact
Unfortunately there are plenty that get crashed beyond repair that you can get a project engine from.
As far as your problems go, work on replacing the MAF first, that is more likely to cause the symptoms you described.
PS. There has already been someone on this board that put an EG33 in a 914, do a search and you can come up with the info. I don't remember if it was ever completed????