If you use a calculator like the link I posted then you don't need to get the OGs from him. In fact, here ya go..
Assuming this is a 5 gallon batch, I get an OG of 1.068 for your second recipe assuming 70% efficiency. Just plug in your extract weight, grains you're mashing, your efficiency, batch size, boil volume and you're good to go. Converting this to AG and assuming 65% efficiency, you'll need 10.5 lbs of pale 2-row to hit 1.068. Of course, I'm making a lot of assumptions about your system like your efficiency, boil size, batch size, etc, but the concept would be the same if you were to do it on your own.