Buying a Suit/Blazer Jacket, What Size?

Ashdil
So I am looking at buying a suite jacket it is considered a 42L

The measurements are below:

Shoulders, across back: 19 1/2"

Total Chest Measurement: 45"

Outside Sleeve: 26 1/2"

Length, from Nape (bottom of collar): 32"

Its pretty cheap and VERY nice. However, I am a 44L. My chest measures 43" to 44". I wear a shirt with a length of 35-36". So I am wondering if this jacket will fit?
Buying a Suit/Blazer Jacket, What Size?
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