Nice run dude! Fastest I have seen so far.
I making some very slight changes to the level with the two big saws. Those barrels wont be up that little side ledge, too many people are barrel hopping that fence on their first playthrough (and missing the shotgun, which makes their life hard). You should be fine to just take a barrel from the saw room up with you though, so shouldnt affect the run too much.
I noticed you be able to use the weapons while holding barrels at the end! I will leave this in though, seems like a fun exploit.
Looking forward to seeing this topped!