House of Horrors has monster Parts, basically you can change race by changing Pronouns in Sanctum, then body modifications in House of Horrors.
Bigger breast means armor Modifications, and LustDoll, has a lot to account for. So might be a No from the Dev.
Milk Farm, after Renovations has a Buyable refinery at New Ark Lab basement, buy it return to Milk Farm, and get the Cheese by refining milk, Any Milk, the Queen adores Cheese.