That sounds like a good plan!

How far is it from your pond to your plants?

If too far for direct pumping there are several easy "cheats" for you to use.

I have a cheap 12V DC sump pump that I throw into my ponds to fill a tote on my truck. I power it for a week or two with just a single deep cycle battery. That pump gives me a quick 275 gallons to drive around the farm and water saplings during dry conditions.

I have also had great luck with the drip irrigation systems. They do need a little bit of head (pressure) to operate efficiently. I just put my tanks on 4' high platforms. At that elevation even the drip emitters and the end of the line deliver water at the design rate.

The only drawback for me: If I set the rate too slow, then algae will form in the tank and plug the emitters. For a full garden and quick tank drainage, I don't think you will have that problem.