Looks like a decent example worthy of restoration, especially if the bore is as good as you indicate .......
The "DC" in diamond shaped border stamp is the standard Dominion of Canada property mark for that era, and the numbers likely denote that this particular rifle was issued to the 22nd Battalion, "The Oxford Rifles", of the Active Militia of Canada .... with the 317 being the "stand of arms number" (i.e. rack number) assigned to this rifle and its related accoutrements. Being a "Rifles" unit, all Other Ranks were likely armed with the 2-band Short Rifle and its Pattern 1856 "yataghan" sword bayonet ..... whereas in regular Infantry units, only Sergeants would receive the Short Rifle and sword bayonet, while all Other Ranks in such units were issued the 3-band Long Rifle and triangular-bladed Pattern 1853 socket bayonet. (These bayonet patterns date from the period of muzzle-loading Enfield Rifle Muskets, but were used with the Mark I and II breech-loading conversions of those rifles utilizing the Snider breech system, as well as the Mark III Snider-Enfield rifles which were manufactured from scratch ...)
Here is a young member of a Canadian Active Militia Rifles unit (in this case, the 41st Brockville Battalion of Rifles) with yataghan sword bayonet affixed to his Short Rifle -
Original Pattern 1856 bayonets can still be found quite readily .... but a decent example with a serviceable scabbard will undoubtedly cost at least $300 .... A more affordable alternative would be one of the reproduction Pattern 1856 bayonets (usually made in India) which are sold by Civil War Sutlers .... they are offered because, as you may know, Enfield-pattern Rifle Muskets were the second most common firearm used in the American Civil War and are thus very popular with ACW re-enactors ..... Dixie Gun Works is a good source for such a reproduction P'1856 bayonet - about the best price available and comes with a repro of the proper British bayonet frog for this bayonet and scabbard, whereas most other vendors sell the frogs separately -
http://www.dixiegunworks.com/product_info.php?products_id=3870 -
Such a reproduction bayonet might require a bit of hand fitting to get it to fit properly and snugly. Also, the original grip scales on these bayonets were actually black highly-compressed leather with a finely checkered surface ....
(Some aren't as finely checkered as this ....)
However, in my experience the grip scales on the reproduction bayonets are usually made of wood and the checkering is not really fine enough - so they don't look "correct" .....
Although I do have some original P'1856 bayonets for my rifles, I bought one of these reproduction bayonets from Dixie a number of years ago (mainly to get a serviceable scabbard for an original without a scabbard) and it had much coarser checkering on its wooden grip scales than seen in the above photo. I played around with them, doubling up the checkering lines, and then stained them black (with leather dye) and the result isn't too bad -
As for the other parts you need for your restoration project, I highly recommend you join British Militaria Forums, where I am a member -
http://britishmilitariaforums.yuku.com/directory ..... Despite the name, this site is almost exclusively dedicated to discussion of 19th Century British military
firearms, and has a dedicated Snider-Enfield Forum .... and also a "Yard Sale" forum where you could make known your wants and needs for parts ....