Buy Ancient Gear Structure deck. It's a solid tier 2 deck that bricks occasionally but can win games like stealing candy from a baby. Three Wyverns and reactors is a must. Have some kind of spell removal to pop geartown and fortress for reactor. Six sams aren't worth it since they will be hit soon. It's why I didn't bother with them.
Seems impossible to get 2nd Wyvern in other way. Or maybe if Konami release a dream R ticket but I dont think they will. For Reactor Dragon, yeah you may be able to get 2nd one by a dream UR ticket, but so far Konami give us one ticket every century.