help! 911! charging issues!

Okay. Something is wrong with my 1988 Daytona (just a regular 2.5 engine). It seems it could be electrical as if no energy getting to the starter. The battery seems to have plenty of charge as it's brand new. When I turn the ignition on, the lights all light up however when turning the key...

I've got an 87 d150. Originally a 225 truck. Now a 318. Bought truck with swap done already. What I've done: new alternator. 3 wire internal fan style. New regulator. Replaced lean burn system, due to death, with points dizzy for a cheap get it running for now fix. Read somewhere that to make...