First of all, you need the correct firing pin. The longer pin that comes with the heavy magnun bolt head does not have enough range to get the protrusion and the compression length correct for the shorter bolt head. The protrusion should be .035-.040", and the compression length of the spring should be 1.900".

The bolt bodies have a tolerance of .005" on all the linear measurements, with overall length of 5.315-5.320", 5.196-5.201 to the handle cut and 4.906-4.911 from the hole to the handle cut. Bad news is that they may not be with in tolerance.
The Stockade bolt handles are not built to factory specs, and that is not neccesarily a bad thing, as it can be to your advantage. The extraction cam surface on the bolt handle is typically long. The good news is that it can be filed to fit.