Machine 5 requires a bit of GM fiat, if I recall correctly, and I would assume the average GM would not allow the shields to stack for Body armour, so we may be stuck with a piddly 30 armour. Or 42 with psychic powers.
Dual-wielding suppression shields is what I'm doing for my current tech-priest, however. We're using OW combat rules, and no swift, lightning or dual wield means my only recourse is Feint and Standard Attacks with as much strength behind them as possible.
Though I might stick to mechadendrite-shields on formal occasions. ;P