I know how you feel. I got spoiled in the eighties with the 1 to 100 scale Zeta Gundam kits. Plus I find that the MG kits are better bang for the buck.
You got the Ex-S Gundam and Kampfer? I'm jealous.
The perfect grades are to big and costly for my thoughts on it.
They're a single kit, you build one or the other. God I'd love to get that Aile Strike plus the Noir and Strike E.
Have you ever kept the boxes they came in for moves? That's what I do, seems to help, if they fit.
I've kept a couple of the boxes. They're generally too big for our place to keep too many more, though. I tried to get the Ex-S box down from the closet last night so I could start trying to repair it again, and it was too big to fit without moving a ton of other stuff out of the way.
I've got the other two in the smaller box. I'll be heading to the Japanese Gift Store where I get my kits to check out whether I want to get one for Father's day.
I'd really like to do a PG kit at least once, but our budget really doesn't support that. I'm happy doing about 1 MG kit a year or so. I started the Freedom before Xavy was born, took nearly a 3 year break, and just now finished it. Xavy's really interested in model building, so after he gets bored watching, we usually go and build something with his Duplos.