Battery is already soldered (basically), nobody cares. Aftermarket RAM upgrades only matter insofar as their historically being way overpriced at Apple, this seems avoided for now on the new MBP ($200 for the 16GB upgrade, Crucial asks for $160 for 2x8GB SODIMM so the markup extreme — least of all on a $2200 machine), the HDD -> SSD upgrade is irrelevant as it's already an SSD and if it's the same as the Air (no reason for it not to be), it's a semi-proprietary caseless and low-profile SSD module... for which there are third-party alternatives (or will be, in case the pinout is incompatible with 2011 Air pinout, which would be surprising)