Hi Zedson,

Lots of Pieces and Parts currently listed on eBay if your interested.  Also listed are a selection of stocks and handguards which don't come up very often. 

When I refurbish firearms eBay is one of my goto sites along with S&S Firearms, GunBrokers, Grandpa's Gun Parts, Sarco and others to name a few.

Main thing to remember is do your homework/research to minimize possibly expensive mistakes if your going for period correct.  Otherwise, modify it the way you want.  On a side note, I was thinking about dressing a Krag up like an AR-15 but that would be going way overboard! ;)

I see your Krag and it just begs to be loved... In a manly, fix-it-up kinda way of course! ::)

Have fun with it and happy shooting.