A. I'd like them all shiny and non-shiny, yes - if that's not too much to ask.
B. I'd really prefer 0 in attack. It'd be the best Rotom EVER, so... you should still be able to check the IVs to see if they're maxed out with the Battle Frontier Judge (I don't know how you check IVs) if nothing else.
If you want to pass on the Rotom, that's fine. It's low priority, as I don't want to bother unlocking his other forms right now... but I do think 0 attack is tier 1.
Alternative: If there's a way to give him low attack (0-3, for example) and give him a good Hidden power (HP Fighting 70 or Ice 70), that would be okay. I don't know how to look up HP Ivs - but if you do, and you can do a low (but not 0) attack that gives him a good HP, that'd be fine w/ me.