1:1 Balun for 6m

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Recently I decided to use some of my vast amounts of spare time (as if I have any of that...) to hang a dipole for 6m in a tree.

I have it tuned and can hear some beacons.

I don't yet have a balun for the dipole. Although I have toroids, coax, connectors, a NanoVNA and have worked out how to S21 sweep a balun, I do not have a starting point recipe for a balun on 6m.

Now I guess I could start from scratch, pick a toroid, wind some coax on it and test it, then rinse and repeat until I suss it out but I am, on the whole, lazy.

I have both 31 and 61 material ferrites.

Does anyone have a starting point recipe?