You could try for yourself if you have a savegame close to that wells....
Doesnt feel like randomize items because using precise sequence i would get specific items and if i would change the sequence i would get another bonus....ans that bonus would always be the same using the same sequence.....
So if i would give money using option 1-3-1-3 i knew what i would get everytime
If i would use option 3-3-3-3, i would get different items with different stats but always those items with those stats replicating that exact sequence....
If it was like you said, saved into the game....then i would always get the same blue or purple belt no matter which sequence i would choose....
At this point, it feels hardcoded, not randomize
