oof, so you have even another factor thrown in. I'm glad I'm not the only one stressing though. Solidarity haha. You'll have to keep me updated on how it goes and what little quirks you discovered while doing it since I'll probably be right behind you in timeline.I am completely going through the same thing. I have a patched together marineland 125 gallon and last month decided to pull the trigger on the IM 200EXT as well. Delivery is approximately another month away. I too am on a slab and going to be swapping out in the same place which means, like you, emptying out what I can, sliding the tank over about 8 feet but my problem is that I can’t put the new one in it’s spot right away because we are getting new floors installed . So I have to move the tank, fill it back up, rip up and install new floor, put new tank in place and then transfer livestock. My anxiety is through the roof thinking about it lol.
As mentioned before, write down todo notes and leave time for the unexpected. Once the new floors are finished I’m going to plan the entire transfer in one weekend.
I say pull the trigger, you got this.