There are a good many smiths that can D&T a Mauser for you for less than a jig will cost you. Despite what they say, it is quite possible to drill the holes incorrectly with the Forester jig.
If this is the Husqvarna that already has one hole in the rear and one up front, you are quite likely to find that a jig will not align. Better to have someone indicate your receiver to 1) verify the existingholes are actually placed at TDC and 2) place the new holes in the proper relationship to the existing.
Got pics?
Good advice there, I have seen a number of receivers with mis-aligned Forster Jig, holes. Just finished D&T on a Swede
