JMHO but I would not waste money on another set of OEM air shocks but that's just me. The old adage of "you get what you pay for" applies in spades when it comes to shocks. Be prepared to spend $800 to $1100 for a set of really good, adjustable and rebuildable shocks. IMHO, Ohlins are the best but the Legend Revo A and the Pro Action are also good choices.
If cost is driving your decision and you buy your buddy's OEM air shocks, before you install them, drain the factory oil out and refill with 7W. The process is a bit tedious but worth the trouble. Do some internet research and I am sure you can find some information and maybe a Youtube video on how to do it.