I only officially homeschooled for one year, also in South Central PA (where, as was mentioned, there are LOADS of homeschoolers... though, good luck if you're not Christian
). The best thing about PA homeschooling laws is that kids are only required to be in school from age 8 (by 1 September-- if your child's birthday is in Sept or later, your child will be nearly nine before you need to report) through... eleventh grade, I think. The laws really are draconian, but they are very easy to circumvent. One thing to remember, for your sake and for everyone else, is to never provide more information to the district than legally required.
Course objectives can be remarkably vague, e.g. "Explore mathematical concepts, improve skills." The time requirement is an easy one-- for elementary it's 900 hours *OR* 180 days. Most people find it easier to count days at that level, but I counted hours and we were finished entirely by February.
You needn't keep detailed records of this, either-- I've heard of people just putting a checkmark on a calendar each day that they do school. A portfolio need only demonstrate that work is happening, though most evaluators will want to see progress-- every time you go somewhere, put the tickets in a box. When your child completes a project, take a picture and put *it* in a box. If your evaluator is the sort who wants to see progress, get something from early in the year, something from the middle and something from the end (date everything). Try to find an unschool-friendly evaluator, even if you're not planning to unschool-- they tend to be more knowledgeable about the laws and the work-arounds. Oh, and remember that your child never needs to be in the grades with mandatory testing, if you don't want him to be tested. You declare the grade level at the beginning of the school year; An awful lot of PA homeschoolers are never third, fifth, eighth, or eleventh graders.