I can't attest to the quality, but there is a company called WorkWear King (WWK), which seems to be something like the English version of Dickies or Red kap (sellers of traditional-styled working man's "uniform" clothes). So if you need a Barbour look on a beaters wage, it is a good place to shop.
In addition to construction types of workwear, they have a narrow selection of hunting wear, including waxed cotton jackets, flat caps, and vests which they state are made in England. At their prices, I am skeptical, but oh well.
They are very low priced (25 GBP or $35 USD on ebay). But, if you are an American buying, it's usually an English seller and you'll have to pay $20 or more for shipping and returns could be complicated. https://www.ebay.com/itm/WWK-Mens-Jacket-Brown-Wax-Quilted-Cotton-Garment-Male-Outdoor-Clothing-New/400345041908?hash=item5d366c8bf4:m:mTjrPBObeq7V99c91El1RoQ
There are sometimes domestic US sellers on Amazon; the total all-in cost is higher (around $70 USD) but you can feasibly get a return. https://www.ebay.com/itm/WWK-Mens-Jacket-Brown-Wax-Quilted-Cotton-Garment-Male-Outdoor-Clothing-New/400345041908?hash=item5d366c8bf4:m:mTjrPBObeq7V99c91El1RoQ
Workwear King also makes/sells a tweed vest and tweed shooting coat. They look the part and are functional. Side-by-side with an Orvis or quality English piece you can clearly see areas where corners were cut and costs were saved, but they look nice and are functional enough.
