Recommendations?

Anyone recommend somewhere to purchase custom made leather collars/leads from?

Sorry, I don't use them, but somebody here is bound to be able to help!

AECollars.co.uk pretty expensive though!

For a pup I would just use a soft harness that is adjustable as they grow soo fast!

On etsy.com you can find some nice custom made leather collars. I have linked to a few at the bottom of this post. I have the later one for Maxi in brown and cerise. I think considering what you have told us about your area you wanna make sure you look like a responsible stafford owner and I would not recommend going any black studded collars or similar. As much as it sucks not to be able to pick whatever you like for your dog it comes with owning a stafford that you have to come across responsible. That way you'll attract the right people and dogs to socialise with as well.
A lot of people on here (including me) love the ezydog brand. They have a great padded collar and a great chest plate harness, I would recommend going something like that for your puppy.
If you wanna go leather I would go something colourful. The links I provided are really nice and you can pick between heaps of colour combinations. Hope that helps!

http://www.etsy.com/listing/107058101/custom-padded-leather-collar-size-small

http://www.etsy.com/listing/128523224/one-inch-adjustable-and-customized-o-so?ref=shop_home_active