The aluminum can align your brass, but short of a TIG or Aluminum brazing sticks, nothing sticks to aluminum to anything. The brass to brass connection is only as strong as the solder, unless you stuff more brass rod in there.
Hit up a hardware store, Lowes, Menards, Homeless Depot... check their weldable metal section. You can usually find about 3' chunks of brass tube and rod stock. If you need an obsucre size or profile, try to find a Hobbytown?
http://www.scale4x4rc.org/forums/showthread.php?t=83831
Post 14, 3d printer servo mount for wpl m35
Those little hand tools look very cool, i hope my mechanic doesn't start pushing me to get those and some jackstands.
I really like when the slow boats from china say "**** the torpedos, full speed ahead!". My blinky lights were ordered dec 14, due sometime jan 9 - 30. Arrived dec 28! I hope my M35 makes it on a fast boat.