For a bolt, you will probably have to buy a straight handle type made for the rifle version.
Note that due to age and wear, and slight manufacturing differences, Mauser bolts may NOT interchange between similar models, even when made by the same maker.
For that reason, buy a Argentine M1908 bolt, not some other make.
BE SURE to have the bolt head spaced and checked by a competent gunsmith. Rifle bolts, even of the same make and model DO NOT interchange, especially on used rifles were the receiver and parts are worn.
Even if the bolt fits into the receiver, that's NO guarantee that the head space is correct and firing it could cause it to blow in your face.
One you have the bolt and the gunsmith says it fits or he can make it fit, you can have the handle bent like the carbine version of the 1908 had.
Here's some sources of Model 1908 bolts. These may be expensive due to lack of a supply of usable parts.
http://www.gunpartscorp.com/catalog/Products.aspx?catid=4189
http://ssporters.com/Parts Listing Page.htm
(Call, they used to carry a lot of 1908 parts).