Berliner weisse help

[dareibreathe1]

I plan on brewing a 10 gallon batch tomorrow and just pitching wyeast lacto into the wort and keeping in at the correct temp in a cooler. Now my question is that I planned on picking up 2 smack packs and pitching without making a starter. The LHBS I went to only had 1 left when I got there. Is 1 pack enough for 10 gallons?

 

[aiptasia]

Do they have any White Labs 630? It's a blend of Weizen yeast and lacto.

 

[dareibreathe1]

Not sure unfortunately this store is not my usual store. It's 1.5 hours away and the only reason I went there was because they said they had plenty in. Then someone bought it all but 1. Just to clarify too, I'm doing the pre boil method of leaving the wort in my cooler with the lacto for 4 days at 100 degrees. Then boiling for 30 minutes with hops and transferring to carboys and pitching S-05