Is there a reason why you are going with a 750w power supply when in reality all you really need is a 550w unit and a 650w unit would, in reality, be giving you about 150w headroom beyond what is actually required?
I'd just go with something like this, and you'd have plenty of clearance anyhow. Only 150mm long, high quality Seasonic platform with a 7 year warranty, more than enough capacity for that build with about 150w headroom, at least, in case you plan to do any overclocking or just for the purpose of ensuring the unit runs far below capacity for quiet and cool operation.
PCPartPicker Part List
Power Supply: Antec Earthwatts Gold Pro 650 W 80+ Gold Certified Semi-modular ATX Power Supply ($94.99 @ Amazon)
Total: $94.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-02-26 19:18 EST-0500