I'm pretty new to camping as an easy and cheap way to travel by bike.

To get my feet wet without making costly mistakes, I bought a cheap NatureHike Cloud UP 2, which appears to be a Chinese knock-off of the Big Agnes Fly Creek.
I've only used it a few times, including two nights under heavy rain, and am happy with how it performed… but I'd like to save on the weight and the volume it takes.

So I was wondering if it'd be possible to just keep the hoop (343g, folded 37cm), the independent footprint it was sold with (250g), and pegs (120g), and simply lay a light tarp over it:

Besides the saving in weight + volume, I won't have poles in the middle and it might even be faster to install than a regular tarp.

What do you think?

Thank you.