I understand that completely Sorontar and thought I should put that one up to give people a second route for a endgame suit instead of only the Gravichestplate/Quantum suit.
Another mod which will alleviate power problems caused by not being able to chunk load is the Power Converters mod by Powercrystal. It would also enable phase pipes to send usable eu (by attaching a converter) instead of only mj. This should result in less infrastructure , therefore less strain on the cpu.
This mod adds machines which convert eu, mj and railcrafts steam. This removes the need for massive steam boilers ( which can take 6 hours to get up to full temp) to be running full time.
[1.4.7] PowerCrystals' mods - MFR 2.1! +PowerConverters, NetherOres and more - Minecraft Forum
this link is for all his mods but we would only be interested in Power Converters ( and powercrystals core mod) which doesn't add any ores or worlgen but only converts pwer back and forth.