I was thinking of using for Katie to hopefully make her cheaper (plus XP as part of it). Seems that would be the best course of action right now. Thanks for posting as it helped with seeing my options.
I don't regret burning 1 SC to get him as its freed up the rest of today's stamina to go gold/XP farming. 1 SC for a gold unit is a bargain, especially when I was given the SC by 3 starring the map.