In the readme in v64 it states 'For Stronghold construction, the scaffolding and miscellaneous construction supplies strewn about in the area in Morrowind did not make it through conversion, and I have not gone back to try and recreate this. I have put markers in place for them, but they currently point to nothing.'
Can someone tell me which .nif files they are (and which folder they are in). Also what the markers are called/named in the .esp file.
I would like to convert them.

It's not the models that need
It's not the models that need converting, but the actual object references placed in the game (from original Morrowind.esm to Oblivion format).
I'm already halfway done with it myself, so it will be included in the next master release. If you want to help with something else, this topic covers the main subjects.