I second the vote to skip the panel.

With the little Nicd glow ignitors, the primary use of the panels is outdated and useless. They were developed to aid in providing reliable glow plug power.

The pre- "Hot-Shot" days... you either used a "doorbell" battery (appx 2.5 inch dia 7 inch tall 1.5 volt) or yo used a power panel... the doorbell batteries were somewhat unreliable, as you never knew how lng the thing had been on the shelf. (somtimes they were good for just one start... sometimes 6 months of use...) These heavy batteries were expensive and you had to deal with the wires from them to the engine. (so the wires from the panel were not considered incovenient then)

Power Panels were THE sign you were a knowledgeable modeler in some clubs. If you didn't use one... you didn't know what you were doing.

NOW, you have that nifty little Hit-Shot or Ni-Starter (or whatever brand..) and don't have to worry about wrapping the power panel's (or doorbell battery's) wires through the prop. You have a nice little power pack affixed firmly to the bttom of your starter. (no wires in the prop again... this is looking GOOD!)

What's left to plug in that Power panel? The electic fuel pump... well those things are about as reliable as a snowball in a microwave on full power. (to update an old saying...) Skip the $10 to $25 electric pump because they never last more than a couple of months. Get a "Six Shooter" and it will last you till you crush it. You can whack it and break it... it won't wear out from pumping fuel.

Now the power panel is sitting there doing NOTHING. Just a decoration on that overpiced toolbox you got. (there's better choices than the flite box kits too.)