HH60J "Jayhawk": References?

I want to build a USCG “Jayhawk” (HH60J) in 1/72. Italeri has a kit of the HH60H and I need to know what needs to be removed and what needs to be added to make it a “J”. Does anyone know where to find any reference info?

More important does anyone make after market decals for the Goast Guard chopper?

Thanks a bunch
Rumba

There’s a few pics here. Click on the yellow letter at the bottom of the page to see other pics (there’s 11 of them)

http://www.geocities.co.jp/Hollywood-Stage/6067/uh60j-1.htm

I’m “bumping” this topic, as I would like info on what would be the best 1/72 kit for a Jayhawk and who makes decals for USCG in 1/72.

Thanks all!