I would do a 180. you want to size up a little, get one that will do just a little more than what you have at a heavy bioload.
I'm not able to put down that kind of money at this time. I was looking at the swc xtreme 160 non-cone because it's rated for 125g at a heavy bioload. Plus it's the same price as the cone but with the sicce instead of the atman pump.
Just saw a killer deal on an octopus xtreme 200 for $235 at a store in socal. Would that be too big for my system?
No, I think doubling your skimmers size to your actual systems volume is a safe bet and smart thinking. If its brand new and still in the box I'd scoop it up for 235. It may not be the brand spanking new one with the syncra pump, but its still a good skimmer.
Just saw a killer deal on an octopus extreme 200 for $225 at a store in socal. Would that be too big for my system?
It is a little big for your system, but better that than any asm skimmer.