CVA Kentucky Sights

[Topper]

I have a CVA Kentucky 45cal Octagon barrel that I would like to mount an adjustable rear sight to that works for old eyes. I ordered the Williams WGRS peep think it would fit existing dovetail cut out and was wrong. Any first hand knowledge on RMC V-Peep and how they mount? http://www.rmcsports.com/rmcsports_cfmfiles/newproduct.cfm,
Has anyone tried the dove tail rear sight from Thunder ridge that accepts standard 3/8" blade sights? http://www.thunder-ridge-muzzleloading.com/sights.htm#rear
Is there any risk "safety wise" in drilling and tapping this barrel for rear sights?
If not, would I be better of going with Marble steel vs Williams aluminum sights?
Thanks gents.

[mooman76]

Drilling and tapping should be no problem but in the mean time here is a couple places that could help you out.

http://www.cainsoutdoor.com/

http://www.trackofthewolf.com/(S(ydxpt4v3w2zh0jy1xj4et3nt))/Index.aspx

http://dixiegunworks.com/

[Topper]

Thanks Mooman