A few comments for you...
First off, 2lbs of potatoes (if measured when raw) are worth less than 700 calories. They are also very low in fat. There was a time when I was doing the elimination diet and eating only yams or potatoes, plus cooked veggies and fruit. I would easily eat 3-5 lbs of potatoes those days.
You keep asking how much you should eat. The reason you aren't getting an answer is not because we are trying to hold out on you. Nobody can tell you. There are women on this board who require just 1200cal per day to lose/maintain their weight. There are other women who require between 1800-2700 to maintain their healthy weights. I am one who needs to eat a ton (1800-2700 cals on the rare days i enter my intake into cronometer), and I maintain a BMI under 20.
I eat liberally of veggies (i start my meal with them) and I also eat plenty of starches. I usually eat completely MWL (lots of veggies, intact starches, fruit), except that i eat far more fruit than McDougall recommends. Some days I eat a ton of fruit, especially in the summer. It has not negatively affected me so far, but i am aware of the risks and will alter my habits if i see high triglycerides etc.. Some people find fruit makes it harder to lose weight, or it raises their triglycerides. Only you can figure that out for yourself by experimenting.
You will likely find that starches satisfy you more than fruit did, and you will naturally reach your correct weight if you pay attention to eating to the full satisfaction of your appetite (don't overanalyze this, if you think you're hungry, it is fine to eat....if you overeat a bit, whatever. It's very hard for your body to store unrefined intact starches (ie. cooked rice, potatoes etc) as fat). I eat until i don't want anymore food. If i am craving unhealthy foods, or sugar, or calorie dense items, it usually means i have not eaten enough starches over the past day or two.
I would recommend the following:
1) Stop weighing or measuring your food. Stop using cronometer for a while. Cook up plenty of brown rice, potatoes, or whatever starch you love. Stock up on plenty of vegetables and eat as many of them as you want to. Eat fruit that you love, as needed to keep you satisfied for now. Eat when you're hungry and stop when you feel satisfied and comfortable. Repeat the next time you're hungry.
2) Start your meals with veggies, raw are especially filling and take a nice long time to chew, and then follow it up with enough starch to fully satisfy you.
3) In two weeks, weigh yourself and see where you're at. If you're satisfied with the loss and are also satisfied with your food, continue on. If it's slower than you'd like, post your menu here for some advice, or just increase your veggies. By doing that, you'll fill your belly more and have less room for starches. The only caveat is that you must allow yourself satisfaction...if you fill up on only veggies and neglect starches, you will likely feel deprived and will end up overeating on calorie-dense foods at some point.
4) Get Jeff Novick's DVD on calorie density and read all his threads on the topic. IMO, the calorie density concept is the single most helpful tool for losing weight without counting anything. It is also great for people who require a lot of food to feel satisfied. You are in control. By simply adjusting the calorie density of your diet, you can tweak things until your rate of weight loss is acceptable to you, while also allowing yourself to eat to full satisfaction.
5) Lastly, be wary of processed foods, flour products (even if oil free), sweeteners, dried fruit, and even puffed products (rice cakes, popcorn). For many people, these foods are too calorie dense and will stall weight loss. They are generally very easy to overeat on, especially for a volume eater.
6) McDougall has a great article on the volume eater which you might find helpful.