First off, Arabs out!
No ifs, ands, or buts about it.
Those who won't accept payment to leave, must be thrown out.
Second, nations don't buy goods and trade with other nations unless there are goods and services which they need.
Israel has few natural resources, but has a greater concentration of brains and talent for its size then most of the other countries in the world all together.
Every great advancement in the sciences, technology, industrial production, will be eagerly sought by all nations, including the ones who in public will denounce Israel when given the opportunity.
Third, Israel has in no way made full potential of its tourist industry as it could. Where else in the world can believers see and walk in the very pages of the Bible? With all terrorists removed, there will be no reason for any safety issues with regards to tourism.
All the "menial labor" & "low paying" jobs now taken by Arabs should be replaced by young Jews from all over the world, learning to love their land by working it with their brains and brawn, and being paid for it.
One last thought...If my ideas are completely wrong, and Israel were to find herself isolated, then I'd say that we should simply go "take" anything and everything we need from any and all neighboring countries. I for one really have no interest in being "Mr. Nice Guy" anymore. I intend to live and survive, and if others don't like it, then they will be dealt with accordingly. A no nonsense Israel can go a long way once the nations realize that if they would like a "peace process", then they had better come beg us to stop carpet bombing them and leave them alone.