I have had Items from Sanjay ( replicators ) in the past and now one item at present from Paddelators.
I am impressed with the quality of stitching, machining is very good. The accuracy can be determined by the information you give. They do a lot of items and they have an idea for most things. If you want it to be that much closer in detail, you need to specify and give details, including pictures. Like any maker, they can only go by what knowledge of the item they have. You will not know the detail until it arrives, that means they have put a lot of effort and work into it. If the detail is wrong to you, it must be accepted that you have not specified or clarified that detail, so it is down partly to you.
I have only had a couple of items causing disappointment from replicators, one WW2 Dispatch riders breeches which didn't have the patches on the inside of the legs, second was a cap which was too big, a mistake by one of the machinists not following the order.
The material is not always to the original spec, so check what you require and give them as much info as you can.
I am happy to get items from them, the money I have saved has covered the items that I cannot use. So I don't even send them back. If you contact them they will offer a replacement so they will do what they can to put it right.
There are more now replicating items in the UK, many to chose from. I would look around and then make your own choice.
It is easier to deal with local manufacturer, you can often speak on the phone, or see the items they make, then easily return any problems. The only thing you may not like is the cost is higher. That is the economy here in the UK. I have bought some items from USA too they are slightly cheaper, with some good quality products.
The only thing I will say about imported items, be aware the Import tax will follow you if they see it come in and feel it warrants import duty.
We March any where we are told to, SIR !