<ol>
<li><p>I don't really see why you're so intent upon getting all that credit anyway. But do whatever you want.</p></li>
<li><p>Our school in Junior year and before prepares us for the AP along with the IB. In senior year, it's pretty much all IB, and then the stronger students can take AP in addition if they want to.
In terms of your classes:</p></li>
</ol>
<p>I did Physics SL and AP Physics B. I don't know about HL, whether it would over/under prepare you for C, or which C test...so I can't help you much there. I could imagine PHysics B would probably be a piece of cake for you, but colleges tend to not give much credit for it.</p>
<p>At my school, Soph year was AP Eng Lang, Junior was Lit and first half of HL, and senior was just IB. But the IB HL curriculum will more than prepare you for either of the English tests (though I believe Lang has been revamped, so be sure to check out the formats).</p>
<p>In order to prepare for AP US Hist, for HL History (Americas), we do US History junior year, and LATAM History plus DBQ/Paper 2 stuff senior year. This makes the AP easy to take. If your school, instead, divides the two years chronologically, as many do (colonial-1850ish Jr year, that point-present sr year) then it may be more difficult to take the US History AP, without significant self-study, because you'll have info in your head that is superfluous, and will likely be lacking the trivia-type info AP often asks.</p>
<p>If you're very strong at French SL you can take AP French Lang, I did, and it's one of the tests I feel most confident about. However, most students are not prepared for AP (many don't even take it, of those, few get 5s), despite our French teacher's excellence in IB prep, so...so you can do it, but only if you're good at French.</p>
<p>I did chem HL and we were prepared for AP, but I highly doubt you would be with SL info, unless you self-studied quite a bit.</p>
<p>I hope that was helpful.</p>
<p>Oh, and you didn't ask about math in your question, but I saw you were taking it, so I'll throw in info on that.
If you're taking HL, you'll be prepared for either Calc AP test. The order of difficulty goes pretty definitively (at least according to people at my school) SL<AB<BC<HL. There are, however, a few things on the BC test (mostly applications of integration, as I recall) that you may have to look up. You also have to memorize more.</p>