I agree with Jan on this one. Unless you've got REALLY loooooong straight needles, it would be very hard to keep all those stitches on there!!
Then again, I've used those size 50 Speed Stix from Lion Brand with 4 strands of Homespun!! But that was no picnic either. The stitches kept falling off the other end while I was knitting!
Hope you find something that works for you!!!