Well I am pretty much exactly the same size as you and I have some L baggy fit Oakley pants from the season with the ozone colour. They fit long enough for sure, and the fit is kinda baggy but not really.
As for saga, I bumped up the size this season and got some XL saga pants, so I can't directly compare the fit for the same size, but all I know is that the Saga is bigger in every way. Like a lot bigger. More than I would expect one size would make up. That's just pants though.
If you want specifics you can see the length on the sizing charts on both sites.
I would definitely think saga is a good bit baggier though. It would appear Slandis thinks differently though.