Doing a swap, have a few questions.
 

So i decided to do a 7mgte swap from a 7mge, I pretty much have everyting together and want to know if I could use the lever that the throttle cable goes onto that opens up the throttle body? also Im blocking of the egr, what changes do I need to make for the hose lines and etc.?

also what would be the best oil to use brake in the engine and what to use after changing the oil the first time? I heard Royal Purple was good and not good, same with synthetic. I'm new to this and thats why I ask.

Also how much Transmission fluid do I put in the R154 and what would be the best kind to use?

Last, looking at the air intake side, on the bottom left there is a hose that sticks out and I have no idea where it goes to, I have researched everything for the hose lines and can't find where this last one goes. So where does it go? Is it of any use?

Thanks for your input.