I don't have any personal experience but there are people here who speak very highly of MVT and Loyalist Arms.
As for Indian made arms, it can be a bit of a lottery. You must be able to depend on the honesty and diligence of the retailer, as quality is sometimes good and sometimes bad on these pieces (even from the same factory), and the only quality control is the importer. There are dozens of factories turning out muzzleloaders in India from the quite good to the awful. Furthermore in cases like this, quality may start out good to win a contract, and then progresively drop to make more profit once a few favourable review have appeared. The shortcuts in quality are often in the areas you can't see. Some people say "aw, don't be so harsh, they made the originals that way" but the difference is the originals looked rough(file marks, grind marks) but functioned perfectly first time.
I would want to strip all the awful polyurethane off that stock and refinish all the metal with 600 grit emery paper for a more authentic finish though. Good Luck!