Based on weight of product, shipping would be about:
$ [ L x (W + 12) ] * 0.01 + 3 rounded up to integer
Approx = $12 for 60%, $16 for TKL, $19 for Full
Price approx would be: $10 for 60%, $15 for TKL, $20 for full and $5 for engraving
I know the price is higher than what I had mentioned earlier, but that is because I have gotten a worksman with better quality, price includes shipping materials, and due to forex rate increase materials have become expensive here.
L = Length of roof in cm
W = Width of roof in cm
These are approximates.