Uhm... What method are you using to determine the price for your models m8? MANY are overpriced in your list....
Should cost 185 cds (difference 20 credits)
Should cost 195 cds (saves 5 credits)
Should cost 115 cds (saves 5 credits) love the name btw!
This one is actually priced correctly!
Ok these are also priced correctly! And dont count on your model that you plan to get the sniper skill actually getting it. The advancement chart is very fickle. If my own gang is anything to go by he will end up with a high WS
Should cost 75 cds (saves 5 credits)
Should cost 50 cds (saves 5 credits) Also love this name!
You overpriced your own gang with 40 credits

You could just add a juve with autopistol and keep the 25 credits stashed or add some more weapons (you seem to like clubs

)
Oh and the shotgun DOES have a sort of template attack, they are called scatter shot

they ignore cover bonuses and can blow over to other models if they close enough to your oringal target

You get a -1 penaltry for long range (4-18) but if your opponent is behind hard cover your more likely of hitting (and thus pinning) him. S3 isent so good as S4 but its not terrible either! Also, if you can hit several targets at once with 1 shot its most defenitly worth it (as getting pinned is pretty annoying unless you have a very high I...)