Thanks for the replies so far.
I am sure the RT97 would work, but I am looking for a longer term solution. I am not so sure the RT97 would endure non-stop remote day in and out all weather conditions over several years. Also, knowing the family involved as I do there is the very real possible desire to keep this set up and use it beyond just the development and make it permanent. As such I am looking for equipment that enables rack mounting. There is no need to do this on the 'cheap' but also there is no reason to 'throw' money at it either. My thoughts are along the line of repurposed used commercial grade equipment, or if there is are companies doing GMRS purpose built repeater equipment using it.
As Radioguy7268 mentions, 50 watts is most likely much more than needed, though I would want to be able to set my output power. I just do not want to be limited in what I choose to set it to. As those who have worked with radio systems know, power is rarely the main issue of a good and reliable communication solution. To the point of getting a commercial license I agree on the cost and options points made. The reason I would like to avoid it is because this will be a family site / farm / retreat and I foresee it being far easier to have a family member have the license and stay on top of keeping it active then using some commercial entity.
Agree on using codes on both frequencies not only on the repeater but the HT's and mobiles. Just to be clear, I am planning on using HT's that have a high and low power, 0.5 watts low, and 2 watts high.
I have looked at some of the Bridgecomm UHF repeater listed on their web page. Does anyone here have any experience with them and their equipment?