Let's compare this with an increase of 5% in OSRS gold damaged: your accuracy remains at 80%. Then, since each of those 80 hits will be increased by 5%, the average damage per successful hit increases to 157.5. Then, we'll add the other 20 zeros you hit per 100 shots. Your new total damage per shot will be 126.
Therefore, you'll get the same amount of the amount of damage, not a mere five percent increase but I'm taking the damage that the eagle eye already has. Let's get started, rigour gives +5% accuracy as well as damage as compared to eagle-eye.
Additionally, CCB is not a percentage boost, but rather a static increase of +30 range when compared to Rune Crossbow. It's obvious that +120 in comparison to +90 is an enormous difference, a difference of 33%. But I'm using range-boosting armor to gain a range of attack of +141 using Rune crossbow, meaning that CCB would be +171. Thus, CCB is just 21% more accurate than rune but ignoring the increase in accuracy from Void (it probably doesn't have any effect since it stacks multiplicatively)
In other words, when you take out the differences between eagle and hawk eyes, there's an option to choose between +5 percentage damage AND accuracy instead of +21 percentage accuracy. When you cancel out the +5% accuracy of the rigour of dividing by 1.05 then the option comes down to a +5 percent damage, or +15.5% accuracy. hmm.
Also remember that a chaotic recharge using a mixture of fire cape buy osrs the two types of tokens will cost you around 20k tokens. I'm not sure of your rates at the moment, but bear in mind that eventually you will get floors that award 20k tokens per. These floors could be completed in 23-28 minutes and I doubt that you'll be able to make 2 mil when frost is present, it's more beneficial to employ tokens to fix the floor.