I have actually been eating like this. Until yesterday, i was filling in the rest with syntha-6 shakes and fairlife milk. My macro at 204gP, 207gC, and 67gF. After realizing i was spending too much money on the fairlife, and i havent gotten anymore protein yet, though it seems I dont need to supplement with a powder anyway.
As for only currently eating 1500 calories, i have been eating other random things to fill in. For instance, last night i had 700ish calories of Natural Peanut butter. I say ish because i didnt weigh it or anything, just going by the spoonful.
My conditioning as of now is very Little to none some days. I will normally superset farmer walks with a trap bar with my calf raises and facepulls. I have also been doing 100 reps of pushups and squats alternating reps of 10 with no rest until finished in the sauna.
Until i had the bod pod done I have been hovering between 175-180, but leaning out.
I would like to continue to eat at slight deficit as i am still getting stronger through the 5/3/1 cycles, but I do understand all good things like that will come to an end.
I guess my biggest question would be,
Will it be more efficient to gain the 12 pounds of muscle i am looking for first, or the trim down to the BF level i want to hold then slowly work back up to weight adding muscle.