ORIGINAL: Nebbie
From reading through your list, some questions come to mind:
Tower Hobbies Locking Glow Plug Clip
Hobbico 1.5V Glow Plug Battery
Just from the description, these do not sound compatible. Glow Plug clips are usually the clip and wire that run to a power panel with 12v battery.
And said clip connects to the 1.5v output of the power panel. The parts he chose are compatable, and he can continue using the glow plug clip if he converts to a power panel later.