1500 calories is around 200g of protein. If you're on 700mg test and 500mg tren per week...you won't lose muscle on that. You might lose bit of strength and look little flat....but do a carb up weekly or bi-weekly to help with that and when dieting down is done you'll be killing it when carbs back to regular and calories back higher. I'd add T3 25-75mcg also to help reach goals faster and keep metabolism going full speed.