the LHe was a joke
If you build for DIce you are almost all the way there to LN2
You can sometimes find great deals on Dewars on eBay... sometimes not. I picked up a 30L pretty cheap that still had a great seal.
Either is extremely fun to do and when I get my Gemini pot and can't wait to get tis i7 chip under cold
Hoping this new AMD board gets me into the HTREF 300+ club as well.