Question on order of installation.

[AdobePhil]

I tried searching but was unable to find a related post.

Here's my situation. I'm going FI with a GTM stg 1 SC. I've also ordered new 600cc fuel injectors and an oil cooler through the same company.

In addition, I've ordered a zex 2 stage direct port nitrous system.

I have already maxed out my bolt ons, (exhaust, Y Pipe, Test Pipe, HFC, CAI)

The issue is that the Oil Cooler and the Nitrous system have already arrived; however, the SC won't be ready until about 3-5 more weeks.

My questions is, Can I install all or some of the newly ordered Items, prior to the SC... or should I wait until the SC arrives? I'm pretty sure I should wait until the SC arrives for the installation of the new fuel injectors, but I'm uncertain about the oil cooler and the ZEX system.

Any feedback would be greatly appreciated.

Thanks!