You can file I-485 anytime after you get I-140 receipt, even if your I-140 is still pending.
You can apply for EAD and AP after you get I-485 receipt. You can also file I-485, EAD and AP concurrently. No bad impact on EAD and AP.
You can apply for EAD and AP after you get I-485 receipt. You can also file I-485, EAD and AP concurrently. No bad impact on EAD and AP.