So I came up with a reason theme and chapter to emulate that does not make me feel bad.
I will be building First Born Black Templar and as they play more games they will grow and grow...odd that...it is almost like they are Greenskins...but that cant be right they are the Loyal, most fervent, and always zealous Black Templar Space Marine Chapter.
As they grow they will get access to Primaris models to represent the growth of the "Space Marines"
This is what I am thinking of building to start with.
Black Templar Crusade idea 1: 65 PL
HQ
Emperor's Champion 5PL Warlord Trait Front-Line Commander
Chaplain w/ Jump Pack 6PL (Litany of Hate, Psalm of Remoseless Persecution) Relic: Ancient Breviary
Troops
Crusade Squad: 9 Initiates, 10 Neophyte's (one with Plasma Gun, 1 with Heavy Bolter), 1 Sword Brother (w/ Power Fist) 16PL
Crusade Squad: 9 Initiates (w/ 9x Astartes Shotgun and 9x Combat Knife, 10 Neophyte's, 1 Sword Brother (w/ Power Fist) 16PL
Elite:
Vanguard Veteran Squad w Jump Packs, Sgt with Relic Blade, 5x Storm Shields, 4x Power Claws 14PL
Sternguard Veterans 6PL
63 of 65 PL
3 RP Supply Limit Increase:
1 Relic
1 Warlord Trait
Still debating and would like ideas