@Raider
At the moment I'm still considering between Chef and RWA. RS is beyond my budget, plus their soft goods are far too big for me. I forgot to mention I'm 165cm (that's about 5'4-5'5) and slim built. Is there a minimum size requirement for the hard parts of the suit? Another important thing I'd like to ask is whether a Scout helmet has enough internal space to wear glasses with? I've seen 501st members wear glasses under TK helmets, so I assumed it'd be a similar situation.
Right now Chefs seems to be the most convenient option, as they have soft goods and blasters as well as the hard parts. Their soft good are tailor made according to the website so that's neat. Does Chefs do kits or do they already handle a bit of the work? I'm making assumptions based of their Scout page, as their Storm Commando page says to contact them for more details.
@Blackwatch
I've already looked around in some WIP threads and have picked up some bits of information here and there.
As for the big question,
I respect the 05, but it frankly was fairly outdated by the time the war broke out. The 06 however, was designed with extra internal space to accommodate future upgrades, which gave it long-term viability. (I wonder if the writers copied this from the Panzer III and Panzer IV from WW2, with the latter having extra space in preparation for upgrades.) As for my profile picture, it's the MS-06FZ Zaku II Kai B-Type, also known as the Final Production Type of the 06. B-Type just means this version has the "Fritz" head.