I would be more worried about the oil pickup and the oil pan. When doing a build from a blown block it is better to start with a new oil pan and baffle, than to worry about getting all the metal shavings/etc out of the old oil pan. The way the EJ205 oil pan is designed it is not as good as the EJ257/STi oil pan design in how it holds the oil/the way it flows to the pickup. I believe many people are running a modified oil pickup for safety. This has been discussed in great detail on the NASIOC boards.
Personally, for my EJ257 hybrid build I am running a STi/OEM oil pan, STI/OEM oil pump, and a slightly modified oil pick up (my engine builder/tuner modded it a bit for a little bit better safety/reliablity, I just never cared to ask exactly what he did.
Regardless, I agree with the other posters. You just need to make sure to run the correct oil, the correct amount of oil, and check it on a regular basis. Also, it would not hurt to have an oil pressure gauge. I would also add a new timing belt to your list and your clutch may need some looking at too (i.e. new clutch disk and/or pressure plate; resurface flywheel).