Ok, so its pretty flat, the grass isn't out of control and if you spread the work out over 2 mowers, it wouldn't be too unpleasant.
Nothing the Victas can't handle between them. So you have probably picked the right mowers for your own use (based on weight, cutting width and power)
The snorkel will probably be of good use on the 2 stroke as it looks a bit dusty. How often do you have to clean and oil the filter in the tecumseh?
I don't know how I ended up with two mowers that day, and amazingly having my kids do it, but I usually do it on my own with the one mower. I break it up over two days

It's not really dusty, as there really isn't grass during the summer period, so I only clean out the filter once a year, which is equivalent to around half a dozen mows only. The grass only hangs around for a few months.