Heater core leak

[dlinden200]

I have antifreeze dripping from the weep tube on the right engine firewall.
I did a search and found a few others that had to have heater core replaced, but under warranty. Mine expired 8000 miles ago.
The shop says 8.2 hours at $135/ hour. Entire dash has to be removed.
I did find steps for removal on 'justanswers.com'.
I'm a teacher and have the summer off, so have the time to do myself and I don't have an extra $1300.
Desperatly seeking advice.

Dan