Dietary cholesterol has so little impact on your own blood lipids it's not even worth considering.
That being said, if you find this way of eating comfortable you're fine. Personally, I have NO TROUBLE getting in 220+ grams of protein daily from solid food and I'm 140 lbs soaking wet (I checked this morning, I was soaking wet and I weighed 140 onna NOSE baby!).
Whey IS cheap though. Cheaper than steak for sure.