This board is designed for After Dark, the writing and symbol will be in copper and not really visible with the normal board style.

Designed to use 100:1 current sense coils with legs ~13mm apart. You can find them at common model railroad hobby supply shops or below. https://www.rr-cirkits.com/description/index.html

The terminal blocks are standard 2.5mm spacing screw terminals or the below which are way better.

https://www.digikey.com/en/products/detail/phoenix-contact/1989748/2513965