Hopefully i can help you through it. I had an externall HDD the retail disk and two usb sticks (one 8gb for the Leopard image and a 512mb for the bootable type11). First of all you can use just one 8gb usb stick and follow these directions how-to-usb-install-no-dvd-drive--t421.html
- This makes two partitions on one stick, one bootable and the other the Leopard image. But you may already know these steps so I'll jump ahead.
-I used type11 to install Leopard onto the external.
-Restart and boot the type11 to boot from the external and you should be running OS X
-Use Xslimmer, Monolingual, etc to slim Leopard down (i used a usb stick to install these programs). I got the install to around 4.5gb.
-Restart, boot with type11 and now use the Leopard stick again to use disk utility
-Copy the external drive to your SSD
-Restart, boot with type11 to boot the SSD
-OS X should start up and run DellEFI from the type11 stick.
-Remove type11 stick, restart and OS X should start up on its own