Gosh, I am really sorry to hear the news! I too have been down the LP road and I still have a way to go.
This is just my opinion, but, being that I have gone through a Bi-Laterial LP surgery for Roxy...I would really suggest doing ONE DOG at a time.
Recovery time, is A LOT of work, especially the Bi-Laterial surgery. Def. for the first 3 to 4 weeks, I had to caryy Roxy around with me and I could barely do anything else cause I only had one hand free. So I could only image having to take care of TWO - Bi-Laterial Surgery Dogs = NO HANDS FREE!
Maybe you can do one dog and then at least wait a couple of weeks (just to get over the 'hump' with the recovery of the first dog) and than do the second dog???
Just something to think about
Best of Luck and keep us posted!