This may sound silly but why what do you mean by "produce"? They already make remote reservoir shocks with roughly the correct eye to eye length and stroke is easy to change. They would just need to put in the proper spacers, spring and valving. Unless that's what you mean by produce?

Price wise I believe Penske can build you a 8700 series triple clicker with height adjustment for around $1200. That will include spring and valving. I could be wrong though. Plus I'm not sure what your price point is on the Ohlins or what model it would be. =]