Brake booster length

[69SCSS]

Was wondering what other options I have for this. I have a big block and the stock Power brake booster installed. The end of the master cylinder almost touches the alternator installed! I have seen this on a few trucks, but why did they make the booster bracket so long? I am going to barely be able to install the brake lines in the prop valve (which is under the master for the Inline Tube kit), but even at that, I will barely have room to adjust the alternator belt tension.

I've seen the booster bracket that mounts an 88-98 booster, but are there any other options out there? Seems like this doesn't need to be so far from the firewall, just adds leverage and stress to the firewall! Here's a pic of it installed right now.