Just file them off with the barrel flat & go on. Nothing fancy, file them off & proceed. Nobody will see them anyway..... well.. :idunno: unless I come to inspect.. :rotf: It is less to inlet that way. You leave that edge hanging out & you have to inlet it too.
You did a good job on the dovetails. :hatsoff:
Before ya solder that dovetail on, clean any/all oil out of the bore. Solder the dovetail good, let it cool, then oil the bore good with a very tight patch so you know it got into the rifling there. You don't and it will rust there. :slap: And if you don't take the oil or grease out when ya solder it , the lube will carbonize (bake out) and then it is a bugger to get out. So. clean, solder, cool, lube well....
Keith Lisle
PS: Get the barrel all the way In & Secure (pinned) before ya finish the lock . Get the lock in, fitted to the barrel, then bolted in. Then do the trigger inlet, then tang to triggerplate screw. Then the LOP & buttplate. Then triggerguard & Toeplate.