Assemble it from what? Of the eleven modules here, four have something in the market that overlaps part of what they do: permit‑to‑work, competency records, twin geometry, and the checklist half of Field IQ. For the other seven there is nothing to buy.
No vendor turns a written procedure into a scored simulation on your own equipment in hours — that is Genesis, and it does not exist anywhere else. Nothing on the market recognises what a piece of equipment is rather than what shape it is. Nothing watches through a camera what your crew actually did and scores it against the plan, or guides them while the job is live. Nothing captures a retiring expert’s judgment so it still answers questions, replays a real incident on your own geometry, or feeds what happened in the field back into the procedure and the training.
So a stack of separate tools is not a cheaper version of this. It is four partial substitutes and seven gaps, bought from four to six vendors that do not talk to each other — which is why what your crews learn in the field never reaches the training, and the assessment never sees the procedure. It costs less because it is less. The question worth putting to whoever proposes it is which of the seven you intend to do without.