Energy Credit rebate, and financed

Hello

I had a new Furnace, Water Heater, air conditioner, and attic insulation installed in my existing home in 2024. Total cost was 17,000, less rebates of around 5000, net cost = 12,000.  This has been financed to be paid over 10 years.  Vendor gave me full pricing of these 4 different products, and a single rebate amount. 

Question 1 - How should I spread the rebate amount amongst the 4 different products (Furnace, Water Heater, air conditioner, and attic insulation).    Should I take a % of rebate, and subtract from the full price listed by the vendor (without rebate) for each product, to come up with a net cost (after rebate) which I can enter in Turbo tax?

Question 2 - The amount is financed, however, should I enter full 12,000 towards 2024 energy credits, since the work is done?

Thank you