Having trouble with the "bulk" of my Winter setup...

[Doqueryn]

My Winter Hammock camping setup seems really bulky.
Here is my setup.
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1. Warbonnet Eldorado Hammock
2. Part 1 of my DIY Gemini underquilt (had to use Sam's club synthetic camp blankets, couldnt find costco down)
3. Part 2 of my DIY Gemini underquilt
4. Inexpensive 14.7ft x 12ft amazon tarp
5. Kelty Discovery 30 Sleeping bag

Trying to figure out how I can reduce this down in size.
I realize, I've gone mostly synthetic, which is a good bit of bulk, but it's what I have been able to afford.

Spring and Fall I can go without the 5 and just used the Gemini setup.
My concern is this next weekend, lows are 40, which is fairly cold, so I am thinking I need the full setup.

Thoughts on the 1st place I should target for cutting down size?

Perhaps a OneTigrus underquilt or something amazon affordable like that?