Ah- if you're doing a full boil, then you don't have to adjust any hops. Just use the correct amount for the AG version, and the targeted IBUs.
Good luck with the recipes- and make sure you let us know how it turns out!
Incidently, you don't have to add the extract late when you do a full boil. Just like in AG brewing, the wort will be at the correct SG during the boil with all the extracts added.