Wasn't the point still that it was attainable and in measurable amounts as opposed to a luck based system w/ what @most 8 chests in hamlet that drop items that can't be passed/traded/sold, a luck based synth, a luck based double meld, a luck based mat drop same 8 chests that drop but can't be passed traded or sold.
Yes dyna had RNG, it also placed 500(no I've never counted) mobs for you to attempt that RNG on and each could drop 0~3 singles and 0~1 100(likely fuck no but it did happen). So in the end you could pretty safely say that, assuming you were in a shell that did build weapons for each person in turn and sold only what was needed for lamps. You could say that each run you gained, 50/run @1mil/lamp, and 100/run @500k/lamp. So the math I put out there earlier, aside from my not remembering a 1mil point is right for the 2~3 years prior to dyna reforms. ~100/run x 100 runs with no currency bought. It's 50 weeks, < 1 year. I can also say I don't know anyone that did a straight farm for them until after the reform that made entry free and everyday for, if you knew how, ~300/day in lowman and even solo.