Nah, best way to get customs is through Crazy Orders. Play as the character you want to get customs for, and get 15+ turns each round. Usually get 4-5 customs for that specific character and another 4-5 customs for others. I got all of Ness's stuff within 45 minutes for instance. Granted, gotta do this character by character, but since you also acquire other customs along the way, it all quickly gathers.
Love Ness in this game. Just love him. Won a local tourney with him. His f-air is such a good approach, and I love the short hop double n-air pressure. Not pleased much with the impracticality of using PK Flash still, but his other specials are more useful in this iteration all-around. PK Fire is great for spacing and edgeguarding in particular. Love that he was given Lucas's PK Thunder for the purpose of avoiding gimps.
Need to find a secondary and tertiary character now. Can't rely on Ness alone to continue the tournament wins. Anyone have a good idea of who Ness's best counters are, and which characters are best counters to those characters? I'm pretty comfortable playing everyone on the roster, except for Rosalina.