Many of us on this forum have done this window repair. It is not technically difficult, but is time consuming.
I have no problem with anyone ordering the kit, but you can find the supplies MUCH CHEAPER on Ebay or Amazon. The sealant for the windows is C.R. LAURENCE 877 CRL Super Spacer Sealant
Here's an example of it on ebay for less than $15 per tube with shipping.
C R Laurence sealant on ebayOrder the spacer in the correct thickness, order the sealant, and use the tools you already have on hand. You'll save some money.
There is documentation on the process in the files section of the IRV2 forms (link below) ...look for the title fogged window repair.
files section of irv2 forumFred