A lot of research points to 1.3g protein/lb bw. (The Protein Book by Lyle Mcdonald). Also, it's been shown that the protein source does not matter.
Egg whites, tuna, chicken breast, low fat cottage cheese, red meat sometimes. Rice, brocolli, asparagus, esentially most of the veggies carry small amount of calories and will fill you up. 20mg of oxymetholone/day for 6 months, low amount of alcohol or other liver metabolized compounds and you're good to go.
Or 37.5mg tren eod for 6 months would be even better. Don't forget HCG, 250IU 2x/week to keep the boys in check. Pause every 6 weeks for 2 weeks off and 10mg tamoxifen/day during this period to resensitize testes to HCG.