First I would ask you what is significant about the number 130.
And second, I would say, I have been told I was big boned all my life, but - well, after losing weight, I see that just wasnt so.
What is or isnt realisitc is going to depend on so many things, like your bone density (folks who have been larger for longer have denser bones, so they weigh more than someone who hasnt been heavy for as long), how much muscle mass you have. Stuff like that.
Another thing too is, if you get to 150 and the extra skin is freaking you out and you arent in a position for PS, then getting thinner is only going to make that worse.
I would say, just as a guideline, shoot for 130, but see how you feel/how you look, do you like it, when you get there.
I aimed initially for 133 cuz it was the middle of a normal BMI, but after loss, and weight lifting to fill up my extra skin, my skin and bones and muscle ALONE weigh 130, so you see, there is *no way* I could get to 130 and STAY there, I wouldnt even have enough fat on me for my basic functions.
So, long story short :}
Its hard to know what "realistic" is going to look like after you lose weight. You may lose a lot of muscle mass and it may be possible, or maybe not. But you really *do* want to keep and build muscle mass, it certainly helps you as you age, for your bones, your posture, your health, and possibly gluttonishly enough, so you dont *have* to live on 800 calories a day for the rest of your life! (Exaggerating, but you see my point).
I say just shoot for it, and then you can *always* tweak when you see what you look like/feel like *realistically* when you get there!