You won't find that exact coil on the chart but there are a couple 23-750 that show 3.9 ohms is correct so your 23-700 that measured 3.6 is probably fine.
Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside