I don't think you have PRNAV, bose-x.
The relevant nav accuracy bits of PRNAV requirements do appear to be met by any common IFR GPS (well if they are not it's hard to see how else they could be met; there is no more accurate method in the universe) but there is some other stuff which has been variously interpreted in its relevance to GA, and one interpretation appears to be that an EHSI (a HSI with the course pointer automatically rotating to the next track, at each waypoint) is required.
Personally I don't know but if somebody does know I'd like to hear about it.