@Milleniumfalshood
Fantastic to hear that you're gonna pick it up again !!
I downloaded five models here:
2 Victory SD's
2 ISD's II
1 ISD i
1 Republic SD
I can't see any differences in the Victory's and the ISD II's though.
And there just one RSD so not the color variations.
I just had a look at the XWAU website and that Executor looks amazing !!
There are a lot of very nice models though.
If I could ever have the liberty to make a request then I would choose the Rebel Medium Transport aka Gallofree (the one that looks like a whale:mrgreen

Someone made a model of it once but it's very simple, I saw some scratchbuild of the Gallofree on the internet that looked awesome but that was a one off.
I used to have a huge collection of SW plastic models, all that is left are some bits and pieces (I know it's sad).
I was waay younger back then and thrue time stuff got moved around etc. and got lost. Maybe my parrents gave away a great portion of it I don't know.
Now that I have some more time on my hands I wanna see if I can bring back that collection in papermodels.
Of what I can remember I had the following models....
AT-AT
AT-ST
AT-AT hoth display with Gallofree, Millenium Falcon, Snowspeeder, etc.
Imperial Stardestroyer
Tyderium Shuttle
X-Wing 2x small and big
Snowspeeder
Tie Fighter plus an Interceptor and Vader's Tie
B-Wing
Millenium Falcon scale 1/72
A-wing
Speeder Bike
R2-D2
C3P0
Deathstar by AMT
Most models were from AMT or MPC
The ISD was from Airfix but the same as the MPC one I think.
Airfix published some US models here in Europe (the Netherlands where I live).
So I still have a lot of catching up yo do if I want to bring back my collection.
Your ISD's are a fantastic start though !!
I just started papercrafting so I'm doing some smaller easier models first to learn the skills. After that I hope I can make the ISD's etc. so that they look good too
Enough talk.......
Cheers man and all the best (with your study too).
Elko