Couple $50 1000lb engine stands.... extend the mast.... reinforce it into A shape .... join them with some long steel tubing. Check your local metal recycling bin for free scrap
If you want to get crazy (extra ~$20).... put a locking hand winch on each end with some high strength eyelets and you have infinite locking positions.
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The '66 912 Bastardization project has begun.
Note to PO's: LAY OFF THE FREAKING BONDO!!!!
The science was settled: Earth was flat.
Galileo : Flat Earth denier.