Do you want both circuits to always come on together with one stomp or do you want them available independently of each other though in the same enclosure?
Whichever you prefer, there are diagrams on the forum on how to box up two circuits together in either configuration (you could even add an order switcher and have the chorus run into the preamp).
Check the
PPCB wiki
wiki.pedalpcb.com
wiki.pedalpcb.com
IN-Jack > 3PDT (or other bypass method) > Circ1-in > Circ1-out > Circ2-in > Circ2-out > 3PDT > OUT-jack
or
IN-Jack > 3PDT-A (or other bypass method) > Circ1-in > Circ1-out > 3PDT-A > 3PDT-B > Circ2-in > Circ2-out > 3PDT-B > OUT-jack
If you want the order-switcher, you can find it in
this thread.