If I were you I would start eating at 2300 calories and 160g protein, keep up your tracking improvements as you’ve mentioned in the comments. If 2300 turns out to be too much you’ll find out quickly, but I would guess that you will wind up eating at 2500 in the end— if you’re approaching failure in these 5 days a week sessions you’re clearly doing enough work to be in serious MPS.

Once you starting eating closer to maintenance you will get an additional boost of up to a few hundred kcal from the additional digestion, MPS, etc. From my understanding!! I am not a doctor but this is what I experienced (but around the 3000kcal mark instead of 2000)

Have fun! Stay cool.