So it seemed that a Magicka Orc build wasn't really a good idea due to the zero racial Orcs get for Magicka.
I have given a Templar/Healer Heavy Armour build a go to see if I could get it to work and be sustainable on the Mana front.
I would like feedback on this if possible as can't seem to find any other builds or arguments on this type of build. Have found Orc Templar Stamina or Magicka DPS but Healer Magicka builds seem thin on the ground for Orc race.

I'm currently 214 CP and mana is completely sustainable with all the stats as per the calculator. I thought if Orcs have good Stamina & Health racials then why not max the hell out of the Magicka and let Stam & Hth take care of themselves and see what happens.

I've got all 150 heavy armour, 5 piece Seducer, 4 piece Magnus Gift, all with mundus stone Atronach (mag regen) and spell & weapon resistence mix.
Enchanted with purple Magicka regen
Weapon set up is sword and board for both bar 1 and 2, main weapon on bar 1 is the only 160 armour piece and is legendary with legendary enchantment for weapon/spell damage buff.
Bar 2 has no spell attacks at all and is only for really hard going areas, healing and protection only. Weapon on bar 2 (1h axe) has healing % trait attached.

Jewellery is Stendarr set. (Mag recovery and maximum mix)

Other stats are (unbuffed):
Max Mag: 30019
Max Hth: 12385
Max Sta: 9956

Mag rec: 1992
Hth rec: 488
Sta rec: 565

Spell dam: 1455
Wpn dam: 1481
Spell crit: 32%
Wpn crit: 10%

Spell res: 22455
Phy res: 19815
Crit res: 882

I use a drink potion which buffs Magicka & Health regen.

Would really welcome any feedback that can improve or confirm build is okay to deal with end game difficulty if I keep on this path. Most of the time I group PVE with two other DPS or solo PVE.

Thanks.