"Will this be okay?" - If you need to ask that question, I suggest you hire an electrician.
For residential wiring, the National Electric Code (NEC) is not rocket science and includes a supplementary book with additional guidance.
I suggest you evaluate your main panel to determine if capacity is available for your purpose. A DIY sub panel will not have the benefit of an electrician's underwriter's inspection sticker, which if flagged during home sale, can create complicated consequences. Installations that look like DIY can result in similar consequences.
As to adding air conditioning to electric baseboard heat, I suggest you consider a central heat pump. Expensive, but likely to pay back more in resale than energy. How many houses in your area have central systems vs baseboard and window shakers?
For residential wiring, the National Electric Code (NEC) is not rocket science and includes a supplementary book with additional guidance.
I suggest you evaluate your main panel to determine if capacity is available for your purpose. A DIY sub panel will not have the benefit of an electrician's underwriter's inspection sticker, which if flagged during home sale, can create complicated consequences. Installations that look like DIY can result in similar consequences.
As to adding air conditioning to electric baseboard heat, I suggest you consider a central heat pump. Expensive, but likely to pay back more in resale than energy. How many houses in your area have central systems vs baseboard and window shakers?