Nothing shows people truth as much as hard numbers but sadly I am not a math guy so I am looking for assistance here. I need someone to calculate how much it would take to get the item you want in Darktide with current RNG fiesta. The calculation:

You have 12 items per 60 min random in store

You want X weapon there. You want Y variant of some of those weapons too (for example Devil’s Claw has 3 variants).

You want good base stat roll, 370-380

You want that good stat rolls in right stats (so for example you want 80% damage and 60% mobility, not other way around)

Since you will be able to reroll ONLY one perk you want it to be green at least with ONE perk that will be the one you want/need on top of point 1-4. Or White and have % chance to get that perk on Consecration

We will probably be able to change only one blessing to keep RNG grind on highest like with perks so you also want it to be BLULE item on top of points 1-5 so at least ONE blessing is the one you want/need since you may be able to change only one. Though calculation should be done first with 1-5 in mind as this is what we will get. 1-6 as side note calculation.

How wonder how many months/years of gameplay it would take to aquire such item.

Without knowing how the RNG system work and the % numbers they use for the calculation it is almost impossible to calculate this sadly.
But just thinking a moment about this, this could take really up to years …

You would need all the numbers, odds and failsafes.

Need to know the number of weapons for your class (we’ll call variants different weapons for simplicity), the number of weapon blessings there are to choose from, and the number of perks there are to choose from.

If you give me those numbers, I’ll give you the probabilities.

(edit)
So I just looked up some numbers for one of the weapons I use as a zealot with an axe, here’s what I got.

Total # of weapons = 24,
Number of blessings for axe = 9, and
Number of perks for axe = 20.

Assuming for simplicity that each weapon has 9 blessings and 20 perks we have:
Number of combinations = 24 * ncr(9, 2) * ncr(20, 2)
= 24 * 36 * 190
= 164,160 combinations.

So assuming the actual thing you want is just one of those combinations, not counting the 12 weapons in the store at any given hour bottleneck, the probability you get what you want is
1 / 164,160 = 0.000006 = 0.0006%.

I haven’t double checked this, but that’s my first estimate, it’s probably close to this number.

So we got 0.0006% before even looking at the stats of the weapon.

You could probably remove one of the two blessings on the weapon from the calculation. We are graciously allowed to roll one of them in the coming future.

Solid data always hits harder than opinion or feeling. Anyone with brain obviously sees how horrible RNG is right now but hard data can’t be ignored with “it’s just your opinion”. If I can I like to have solid data even if I already know it will just confirm what we all know.