Agreed with Marquis the Black, not sure how to mitigate the condensation there, do you put a little dip in the line and let it pour into a line/bucket? Never lived somewhere where it snows so I'm not the best guy for that tip.
You should be ok I got 8k inline 16k total however only half of the room is on now. Sealed room with c02 and 2 chillers etc. I have one of those 2100 12" vortex at the end of each 8k pulling air thru. you can see pic in my album. I also got a 3.5 ton mini split installed though so...