Choosing Class And Levelling Up Tenderfoot On Blankos After Unboxing!

I have been playing Blankos Block Party for quite awhile. Have a decent collection of Blankos now. I have been looking at the marketplace. It has gone down in the last few months so I look for the ones worth more. The Tenderfoot blanko in my collection is worth a bit more than the others I have collected. It can be sold for more after a mashup and levelling up. It was a pre first season blanko so I am taking advantage of the Tanker Class as it is unavailable in Season 1 blankos. That may change in the future, don't know. I always love having a new blanko! Tenderfoot looks messed up after mashing up so am looking forward to that