Here is an illustration of 160 km radii, from the northern tip of Gaza and from the northern part of the Sinai, in case the weapons would have ended up in the hands of Sinai jihadists.
Virtually all of Israel, except for Eilat and the far northern parts, would be in range of terror groups in Gaza. Most of Israel, including Eilat and almost all of Judea and Samaria, would be in range of terror groups in the Sinai.
If you assume a very conservative range of 100 km from Hezbollah rockets, then Israel would be entirely within rocket range of Iran-backed terrorists.
Interestingly, the capitals of Jordan and Egypt would also have been in range of Islamist groups in Gaza and the Sinai had these rockets been smuggled in successfully.
Iran would have had all of Israel and critical parts of Jordan and Egypt under direct rocket threat.