Focus2 you will find using the introduction sub section telling a little about yourself will get you off to a better rolling start.
Thanks for your joining RT.
I am sure some member can help you on the front sights.
I don't know about revolvers however I ordered another front sight for my SR1911LW from Brownells for $5.95 plus 7.95 shipping. I have always complained about my pistol shooting lower than POA. I called Ruger and they said they only offer 1 size sight for the 1911 however I measured mine (I have 3) and there is a difference in height. You might give CS a call in Prescott, Az and talk to them. Brownells has the same exact sight for the Rugers as Ruger supplies them with their sights. The rear sights were $22.95. I hate to file a sight down but I won't mind if I have another stock one on hand and the price was right. All center fire pistols are made in Az and they are very accomodating. Good luck!!