Would probably work... Shoot me some measurements, and there is a 75% chance I can send you one of these brackets. I have parted out a few DE playfields over the years, and do know I have some similar brackets in my stash. If I have something you can use, just send me your snail mail and I will shoot one your way.

They are legit. Formerly pinballcenter.eu

Your might work option likely will not be able to fit the coil as on the original bracket. If you note on the bottom that the original bracket has a rectangular base while your "might work" option is square.

It appears the original bracket has been replaced by #515-6527-00 as noted in a Pinside posting.
This part is available from Marco.

https://pinside.com/pinball/forum/topic/de-star-wars-ball-launcher-bracket-broke

I have this ... Looks like the only difference is 4 holes instead of 3 ... Its off a rocky n Bullwinkle

If you want it its yours...

NCM_0697.jpg

NCM_0696.jpg

I had the same bracket broken on a Hook I restored a couple of weeks ago. I ended up using a Williams slingshot kicker "Z" bracket in place of the original Data East bracket. Only difference was the color: silver instead of gold.

I used Williams # A-17808 bracket.

http://www.marcospecialties.com/pinball-parts/A-17808

It was a perfect fit.