XPS 8300-Clean install of Windows on a new SSD

Hello.

I am refurbishing a Dell XPS 8300, Core i7, Windows 7 Pro, 64-bit. I have the Dell OS install disk.

Will NOT be installing RAID array.

Re: the Intel RST and HECI drivers:

This system will not be getting a RAID. I would still like to install the IRST drivers. Not sure about the HECI driver.

Should I install both?

Do I NEED either?

If I want the IRST, do I need to F6 the RAID driver during OS install or can I install IRST after OS install?

Same questions for the HECI driver (basically).

Also, should I be using the Dell-supplied IRST driver (2013) or should I go with the most recent IRST from the Intel site? (Same question can be asked about the Intel Chipset Software Inst. Utility)

Edit:

I just checked the machine I built one year ago (ASUS, Skylake, Z170) and it has both the IRST and Intel Management Engine components. They must have been on the mobo drivers disk, but I have no recollection of doing an F6 RAID driver install during OS install. I don't remember installing the IRST either but I did do it. I must be getting too old.

Edit #2:

Hmm, my 2010 Toshiba laptop also has the IRST and IMEC installed. Never noticed before.