I agree almost entirely with Delancey, but I still think my advice
to a stranger would be to buy an anchor
I've successfully jumped in headfirst to a number of unfamiliar domains to make stuff rather than buy it. Complicated things, with technologies that were totally new to me. Designing, engineering, tinkering, fun stuff! Super duper satisfying. I agree with what you are saying: Don't be afraid to try.
In all those cases I refered to, it was easy for me to *evaluate* my thingamajig, and tweak it to improve it.
Evaluating an anchor
design seems like a long process. Lots of different situations it needs to perform in. All anchors can fail, their goodness or badness is really a statistical thing. With a known design, even if whats-his-face is an ER nurse or whatever, the evaluation has been crowd sourced. The problems will emerge. Lots of examples of this process informing us of scenarios where certain anchors are likely to do poorly.
Could someone with experience anchoring
and experience making stuff come out the gate with a decent enough anchor? Probably. But a total bonehead could probably make some real dangerous garbage. I remember reading someone's claim that their spade became useless when they replaced the lead with zinc after galvanizing. Seemed like a little tweak to them (and to me, frankly), but... So its a tech not without it's subtleties.
So unless I got the sense they were taking it seriously enough to do a lot of relevant trials, with safety gear
like an anchor I'd say buy a tried and true one.