PoE Lightning Arrow, InstalokMyMoney builds

So a simple question. I have started as LA Ballista champion. To explain what do I follow, is EA ballista, just swap a gen to LA with following changes to tree, items and gems. gameplay has to stay the same as EA ballista champ. &x200B; Is this actually possible? What path to follow: crits, frenzy, flat ele damage, flat phys to ele? What should I do, or just give up, and make something decent? Pob what I have got so far &x200B; thanks in advance!