Using upper/lower rod bushings w/AGX?

[slipnfall]

Hi there, Quick question: can I use the NISMO upper and lower rubber shock bushings with the KYB AGX shocks? I need to buy the upper bearings(mounts) and the dust boots all around, and figured I'd pick these up while I was at it(they're only $5-6each). It looks like these parts(oem) are sold as part of the stock shock assembly. I don't want to buy them if something similar is already on the AGX's.

'per the FSM, these parts are named 'upper rubber seat' and 'bushing'. If I buy new upper mounts, will they include this 'bushing'?

Like I said, I don't want to buy any unnecessary parts. Everything is pretty worn, so I'd like to replace it all in one shot.

Thanks for reading,-Jamie