Difficult hands to bid. 7

North will pass unless playing the old Lucas weak 2s (major and a minor). 

East will bid 1♦ 

South has a choice of bidding a peremptive 3 or 4♠, with the vulnerability and weak suit caution would probably mean bidding 3.

West as a difficult decision, he knows that E/Q have values for game, but where? A double is probably best. 

North should pass.

East doesn't have ♥ s so could show a ♠ stop with 3N - risky but which will end up making +2. 

If East bids 4♦ West may bid 5♣ to show 5+ and some limited support of ♦ swhich East can pass and make +1.

Over 4♠ doubled the decision is more difficult, pass scores best, but many will bid 5♦ .