(#1) Are you planning on taking cuttings from the 'mother plants' to achieve your 1800 plants ?
(#2) or do you plan on using retained seeds from prior harvest ?
(#3) With top-heavy plants, another gardening FReeper used a "cattle gate" laying in about a 45 angle ("_/") to support top growth,
while letting the fruit hang free thru the gate mesh for harvest.
That way the plant was not stressed and could continue its upward growth, at the same time, fruit was hanging for harvest.
Just a thought to make growing and harvest easier.
the tomatoes in the photos are for seeds in 2018, I will seed out the largest 20 or so and eat the rest, I harvested about 2500 seeds last winter that’s what I will soon be planting.
I will use the Florida weave and 18 inch stakes to support them once I plant them around the 15th of March. I will also set up low tunnel hoops so I can cover them with row covers on frosty nights.
I have a friend that farms several acres and uses the 20ft cattle panels for green beans, makes it very easy to pick them and you stay cool while you are doing it.