That is perfect! I would probably just want a remote line instead of vertical air. I really like your barrel. What type of mag is that? micromag? If so, what generation?
I am currently still saving money. I have almost bit on a few deals, but I am still torn. On one hand, I might buy a beat up automag straight feed body from Bacci and grind off the feed. Then I could use the empire body picatiny system. If I screw up the Bacci body, I am not out much money.
On the other hand, it may not be much more expensive to just buy a nice micromag. I would leave it stock and figure out how to attach a stick feed with remote line.