Those are: casino model, door security and vault door. So my question is, I've to buy them er'time I do the heist or is one time buy and I'll have it in every set up I do?

Diamond Casino Heist Payout: $10.34 -R$11.37 Million\n\n The Diamond Casino Heist payout is by far the highest in GTA Online. The rewards for the mission add up toR$10.34 million on normal difficulty, and it can go up toR$11.37 million, if the heist is on hard difficulty.

Montana has a relatively high number of casinos due to its laws and regulations regarding gambling. In the 1980s, the state allowed for the legalization of gambling, which led to the proliferation of casinos.

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