Well they can be easily extracted for use with the port, you just have to rename the POF files back to the FS1 names. Though I added LODs to the Angel, so its Port table entry will probably have to be changed.
The Angel isn't a canon craft really, it's a custom model though is based on the FS1 info.
There's no insigna data for any of those ships and if the port versions have any custom glowpoints they would need to be readded.
A full SCP standard download including the HTL modelpack is now 96.3mb (230mb uncompressed) without the missions and other campaign specific files.