ac evaporator - how to?

1994 1500 with a 4.3L and 211K miles - and the a/c finally cratered. i have replaced the compressor and condenser and put on new hoses, but the connection from the evaporator to the accumulator - right next to the firewall, was corroded and would not turn. so i took a saws-all and cut it off, hoping i could then turn the connection and i could at least get the accumulator side off - which i did, but the cap nut is still stuck solid and is beginning to twist the line. so i now have the tube sticking out of the firewall about 2 inches - so the way i see it i have these options:

1) IF there is some sort of plumbers-type connection that i could slip over the line - like an a/c hose that i can clamp over it, i could maybe mount the accumulator at a slightly different location and just run a hose to it. or -

2) i have to replace the line from the evaporator to the accumulator - which appears to be no small feat for access. yesterday my son and i took the entire dash system apart and still could not get to where i could change that line - and going that far i would likely want to replace the evaporator as well due to its age, right? so how the heck do you change it out? i imagine a garage is going to really be expensive for that.....

3) is there some sort of "accessory" evaporator and fan i can mount somewhere else and bypass the old one and just leave it where it is?????

i like option no. 1 the best - i am hoping an ac guy could make up a custom hose to fit ....

looking forward to thoughts...

david in houston - where i need ac bad!!!!