I'm not sure how much info you want.....but lets start this way.....

I do almost all my own work..... follow this:

1. Basic milsurp rifle.....$200
2. Douglas barrel, $200
3. Williams sights $50
4. Bluing $100
5. walnut blank...$200 (and a lot more)
6. Routing blank, $160
7. Dakota bolt handle $6
8. Dakota three pos safety...$120
9. Recoil pad, $35
10. Dakota swiver bases. $25
11. Stock finishing supplies, $35
12. Checkering (I buy this), $200
13. heat treating action, $35
14. Timney trigger, $45
15. Custom hinged bottom metal, $125

And I am assuming I have the chambering reamer which might add another $125....

Converting a milsurp Mauser is not a cheap thing to do even if you do your own work!...I still have iver $1,000 in this rifle!

To simply rebarrel your Parker Hale:
1. New barrel......anywhere from $85 to $400
2 Fitting the barrel to the action $150 (Normally includes polish for bluing, engraving caliber on barrel, cutting to length, crowning muzzle, test firing a cartridge.)....can easily run much more
3. reblue barreled action, $140
4. inletting stock for new barrel.....?????

Don't let anyone kid you....rebarreling is usually $400 by the time it's all done.......you're usually better off financially to trade the gun!

BTW....I am an amateur and build my own rifles only.....the only outside work I do is occasionally jewel bolts.