Any idea of the hardware he used and for how long? He has some margin!
I got in touch with Norman Luhn, and he gave me this brief:
The titanic-6-tuplet-project was a "dream" of me in year 2000.
I have started the project on Aug. 2011. After 4 years I found it after 153 quintuplets. The hardware is normal, 12-18 Phenom II cores at 2.8 GHz. I wrote a presieve for APSIEVE. It was a hard job :-) to sieve in 10,000 4-billion-blocks before I found it. I looked for k's in an interval 0 up to 10^14.
Since he just signed up for this forum, you can probably discuss other details with him directly.