Bill,
I'm your height and have nearly the same x-seam, and I was also a bit worried about the adjustment range.
I now have a lightly used Freerider that I'm gaining confidence in riding around the neighborhood.
I quickly discovered that the adjustment range easily accommodates a tall rider, even with the stock 155 mm crankarms.
The pedal on the left crankarm had previously been crossthreaded, so I swapped the 44t/155's for a 48/38/28 170 mm triple from the parts bin.
The longer crank allowed a further reduction of boom length, and my knees are still clearing the handlebars OK.
I have the bars moved back as far as possible, and they still require a bit of a stretch with the shorter boom extension.
I don't think that 'reach' will be a problem, but more riding time will probably be needed. I doubt I'll be able to recline the seatback much
I do see and feel the positive upper body impact on climbing performance, but haven't ridden any significant hills yet.
I do plan to add a front derailer, but doubt that the inner ring on the triple would be too useful.
Cheers,
Mike