if you want to salvage your current ingredients and make an IPA close to style, buy 8 oz of caramel 20 to steep for 30 minutes at 150 degrees or so before you boil. this will add a slight caramel color to your finished product and add a tiny characteristic sweetness from it since the yeast won't consume all of the sugars. not necessary, but if you add 4 oz of rye malt in the steep as well it will add a really interesting flavor to it and will help with head retention. i ran the numbers:
original gravity- 1070
final gravity- 1017
abv- 7% (strap on those boots!)
you're missing hops on this one. you should probably buy another oz for bittering and maybe an oz or two of aromas for dryhopping etc. otherwise it will be malt heavy and will not have the balance i'd want.
also since you're using liquid malt extract, while you're slightly low on a typical IPA color, if you put the LME in at the beginning of the boil and let it boil straight through for an hour, you'll get your wort much darker and that will fit in with the SRM of your style.
tell us how it goes.