Sure, but realize you're be long a straddled backspread which behaves as a fly (in this example) with extra wing prot.
Say you buy the 45/55 outside wings for 3.5. You would own the fly for a risk of $0.7 (4.3 cr). Short the call for 4.9, implied put is 2.9, less wings at 3.5. I am treating...