e107 looks interesting. DirectAdmin doesn't have it's own single-click install system. Many of us use Installatron, a commercial product. You might want to contact them and suggest they add e107.
Whether or not they can or will depends on various issues including licensing issues.
I did actually write a script that did this, but it was for e107 v0.6 not v0.7. If i find it (dont hold your breath) i will make sure it works with v0.7 and post it here.