As Jonathan says, don’t go down the “no cover” route. There may be a way to adapt your present cover. You may be aware of the covers that have the long bars across the width and roll up using a handle. If you can get one of those bars, wide enough to go across your tarp and find a way to attach it, (loops, ties, etc), you could either then use one of the handles to wind it up, although it still needs two people, one each side or there are actual motorised units that will wind it up. It’s called a Vektor. Not cheap, maybe 700€ new but you might get one second hand or cheaper on e-bay or somewhere and would, when you move to the electric cover, should have a value if you sell it.
If you go down this route I’ll be happy to give advice if you need it.