Well, talked to a local shop - going to be getting a Part # TJ200 installed at the end of February/beginning of March. He's got one on his TJ and his YJ and loves what it provides. We talked about the 270amp option that's available, but his recommendation is that the $$$ squeeze wasn't worth the juice for what I'll be using it for which is basically simple trail welds and repairs, hobby type work around my house, and running a grinder or a blender
at times. His are both 200 amp units and he's been really happy with their performance/penetration.
Just fyi, the estimate all-in is about $2300-2500, parts and labor, with them supplying everything and me just dropping the TJ off. Worth it, IMO, as someone who is using this rig as a vacation from the heavy mechanic work I've done on the last 6-8 rigs I've had.