I put the oil cooler on top of the FMIC.
Relocated the coolant tank between the battery and radiator. (Stock bracket fits actually with some simple bends, and then bolts up to the electric fan shroud, and bolts into existing brackets for the fuse box on the back side of the battery, like Toyota planned it that way...
Note that you have to use a smaller battery which is no problem so far, and you have to add some wire to your coolant sensor in the coolant tank as the wire harness is too short. It looks tight there, but everything fits excellent this way, and it get's the coolant tank out of the airflow path, so your not blocking anything.
That being said, you can't see the stock oil cooler I'm using to run my PS system through anymore. I just used the stock oil cooler hard line that runs under the lower tie bar on the core support, and then attached the stock cooler via zip ties and one left over center support point that I've also attached the front AC fan to. There is no more center support on my car, but I've cut up what was left of it, and made a new support that tied the header panel to the core support upper tie bar.
I moved the PS tank to the other side of the radiator, and attached it to the upper tie bar, and a made a simple bracket to the right frame rail, and it's bolted to the hole/nut that used to hold down the clamp for the PS lines that ran there stock. (Now the low pressure return line comes out of the PS rack, goes from the stock hard line to the "stock" oil cooler hard line, through that oil cooler and then back via the hard line to a stainless hose dumping it into the PS tank. A stainless hose from that tank feeds the PS pump for the trip back around again... LOL)
With all of these "coolers" in the way of the radiator, the FMIC, Oil cooler, and PS cooler plus the AC condensor and fans, I started to overheat in traffic at idle when not moving. My old 150k fan clutch had given up and it would freewheel when hot. A replacement clutch from NAPA cured this problem, and now my car is cool as a cucumber in traffic
I'd reccomend if your rebuilding your motor, while it's easy to replace, get a new fan clutch. They are less than 65.00 from NAPA, and work great.