This vest is rated at Level III Plus and is capable of stopping 7.62x51mm, 7.62x39mm, and 5.56x45mm rounds.
The Vism 2924 Series Plate Carrier Vest w/ Two Ballistic Plates models that come with the PE Hard Plates are rated to stop 7.62x39. These models are the following model numbers: BPCVPCV2924T-A, BPCVPCV2924B-A, BPCVPCV2924G-A.
The plate carrier and plates located at the link below will fit a 35" chest.
https://www.opticsplanet.com/spartan-armor-systems-ar550-body-armor-and-shooters-cut-plate-carrier-package.html
This is adjustable in size from Medium - 2 XL
Yes, this should be compatible.
There are options for both hard armor plates (III+) and soft armor (IIIA).
Yes it can, the hard armor plates are rated Level III+, the soft armor is level IIIA and will not stop .223 rounds.
This vest will accommodate most body types.
These are adjustable in size from Medium - 2 XL
The hard armor options would prevent punctures.