Well there are several options. I have a roll your own with separate straps, mosquito net, tarp, etc. the kids have a all in one, which attaches the hammock to the net and straps. Then you just need a tarp of some sort.
unfortunately there isn’t a way to get away from insulation, hammocks use an underquilt and it costs as much as a nice ground mat.
you can easily fit your length in the right hammock, I think thr rule of thumb is 4 feet more than height. What is cool is you sleep angled across the horizontal, so not like a banana. With some learning and the right kit you’re flat, comfy and warm.
we got lighter weight stuff so we can backpack it, cut prices in half if you don’t care about weight or stuffed size.
sample cost for a solution good to freezing
hammock/straps/net all in one $75 - here's a link to the better of the two I have
Amazon product ASIN B07S753W19
underquilt $100
tarp $75
assumes you bring your existing sleeping bag
a boutique solution is $400 + and weight competitive with an ultralight tent for one. Not as light as a tarp only.
ive had good luck with finding stuff at rei gear days and dutchware gear blemished section