Leather bags, wallets and belts required to import to UK

I would sincerely appreciate if you kindly advise on the below:

1) The types of leather you use and their costs?
2) Costs per unit?
3) Timescales for producing and delivering items?
4) If I provide a design of my product, are you able to produce a sample?
5) What would be your minimum order requirement if I use your services?