dont have chars that r only in cash, except new chars. but usually in 2-3 weeks they r added to gm summon stones.
almost all items from cash shop u can get in game (missions/raids/shops/achievements). but ofc chances r not high)
she has stance at beginning. and btw u wont get hm stone from journal. rewars were changed, as there we many ppl who abused this journal with tons of alts
u can do whole scenario in one run. enter mission - kill boss - warp to city to give quest and take next step - move barracks - enter mission - slowly go to next boss.