Anarchic Initiate should be +1, not +2. The stated definition of +2 (Marvelous) includes the bolded statement that it must raise the logical entry's tier. While Anarchic Initiate is an incredibly-good PrC for Psion, it does not raise it from Tier 2 to Tier 1.
(By contrast, Thrallherd does raise Psion to tier 1, because you can take tier 1 casters as thralls.)
Walker in the Waste at +2 is highly suspect. First, without Dry Lich the class is bad, and RAW you get the LA for Dry Lich which is also bad (ordinary Lich is easier at that point; cleric liches, while rare in published material, are perfectly legal). Second, even if Dry Lich's LA is removed, you'll have serious issues with any kind of underwater area for the rest of your career, as you treat any water as holy water and are thus effectively barred from swimming (the most applicable rules would seem to be the proportionality for touching lava or acid vs. immersion in it, which would give 20d4 damage per round). Third, while Dry Lich is very good (without the LA), you are paying quite a lot for it (2 caster levels, 50,000 gp, 4,000 XP), so even without the LA I'm not sure it merits +2 rather than +1 (unless you're going into epic).