If you are concerned then pull more than two circuits. Configure them so no adjacent receptacle (pigtailed GFI) is on the same circuit. EX> Left to right CKT 1, CKT 3, CKT 5, CKT 7 or some such thing. Since its a custom just overkill in the kitchen/dining area. This way, NO MATTER WHAT appliances you get there will be tons of watts (2400 per 120V 20A CKT).

Last edited by electure; 05/01/15 09:00 AM. Reason: To correct math