Don't care about the not playing bit and having it stop. But if I wana pump lava from the nether into a tank in the over world, can a chunk loader in ssp keep said nether chunbks loaded while I'm in the over world , and have one in the overworld so it will work while I'm off in god knows where? Will they run in ssp? Or lan? or not at all unless I run a server?
Since Minecraft 1.3 came out, the game actually runs an internal server in singleplayer. This internal server, like any multiplayer server, can keep multiple different dimensions loaded and running at the same time- although, without mod chunkloaders, this feature is useless in singleplayer.
Placing a chunkloader in the Nether by your pumps will indeed keep chunks in the Nether loaded so your pump will run. There's no problem there.
Also, if you have ExtraUtils installed, you may want to use the Ender-Thermic Pump instead of a regular Buildcraft pump. You have to place it immediately above the level of the lava sea (although it dosen't have to be over lava- it works just fine on the shore) and supply MJ, but it both chunkloads and instantly replaces collected lava with smooth stone, without causing a block update- so you need not worry about either chunkloading or lag from flowing lava blocks.
As a final note (if you didn't already know), both endertanks and Tesseracts (from Thermal Expansion) work across dimensions.
Opened up the Unleashed pack and looked up all the variants of Quarried Stone in NEI. There is no such thing as "FILLED" quarried stone.
There are, however, FITTED versions of Railcraft's decorative blocks, which have the same appearance as stone bricks in various colors. To get these, I believe you just put one quarried stone in the crafting grid to get another version of it, and repeat until you get what you're looking for.
Also, if you don't like NEI, try CraftGuide. I don't think GraftGuide and its plugins (of which there are a few) support as many mod machines as NEI, NEI Plugins, and NEI Addons combined do, but don't quote me on it.
Apparently, there are a few mods (Railcraft comes to mind) that support Craftguide by default, but not NEI.
There are also some mods (GregTech for one) that support NEI, but not Craftguide. So take your pick.
And don't ask us about crafting recipes.