I am looking at a Lopi Berkshire, manufactured Nov 2002. It appears to be in really good condition, barely used per the seller. Is anyone familiar enough to tell me what disadvantages this may have over a new model, other than front only glass. It is noted to have the Ember-fyre system, but I'm not sure what changes with that or other functional parts may have changed. It is set up for NG and they don't have the LP conversion kit, so I'd have to find that. Should that be readily available from a dealer or elsewhere? The asking price is $1850, which seems high considering the age - Current version though runs $4 to 5K new per my research. Any thoughts appreciated!