I've noticed that there were a few hoses and connections:
1. Fuel return line (used civic hose as B18C hose was cut) is stretched and tight. Is this right? I may just end up getting a new tube that is roughly same diamter.
2. Power steering (using B18C) is real close to the edge of the frame. Is this right and will it rub?
3. Using EX harness on B18C and noticed that the fuel injector wires are real tight as i needed to get to the two bolts. Is this typical?

 

make a new fuel return line. get some 1/4" fuel hose from your parts supplier and cut to fit.
as for ps use the stock civic ps hose and use the gsr ps pump
when using a ex engine harness you will need to lengthen or add some wires. the injector wires will be a little tight but will go. the o2 will need to be taken out of the loom and then moved to the back and then reloomed and same goes for vtec and vtop. just add the knock and IAB however.