Glad you're giving it a try.
Report back should you give it a different: I'm always curious about variations.
So, Quark after all, eh? Surprise your in-laws.
I haven't tried it, yet, but cottage cheese is the next best thing to Quark.
Worth a try, in my book. Report back.
Added the missing gram measurements to the OP.
Well, afaik, Quark is some sort of creamy cheese, as is cottage cheese. But Quark != cottage cheese.
Regarding the splenda usage: it depends on your own liking. Just add enough so that the dough is as sweet as you'd like it to be. Then add some more splenda, say, an additional 1/5 of what you've already put into the dough. Just guestimating, though.
Btw, what's up with your nick name? rajraj? Somewhat dadaist. I approve.
Sugar with vanilla aroma, basically (called Vanillinzucker in German). You can just add normal sugar and add some vanilla flavour, if you'd like.
I ate 3/4 of the cake, today. I've also made some serious Chili, but I'm not hungry anymore. Damn you, cheesecake!
I'd like to read about your own variations on this cheesecake recipe. A friend of mine who's currently dieting down from ~15% bf to single digits is using my base version with great success. 50% of his daily caloric intake comes from this cake.
He ditched the citrus theme and took rum and chocolate flavour, instead. And he removed the margarine (which I wouldn't do: fat's a great taste enhancer and the margarine accounts for only about 300 kcal).
Banana flavour could also be cool, maybe with some banana-flavoured protein powder thrown in for good measure.