that is the LRP 28 spec 3, awesome engine, one of the best, but yep parts are hard to get for them. Thats why im waiting for the P8, SH usually have a wider parts supply over LRP, and if its the same motor, then why not get a engine that is cheaper, more parts availabily and exactly the same. Hopefully it will be cheaper,

Heres the SH P8, its not released yet, but compare the stats of the LRP28 and the SH 28 P8 and they are identical
http://www.shengines.com/TECHDATA_PT28XM1AC-P8.htm