Ohhhhhhhhhh. I was off on the wrong track completely. Thanks for the pic - now I get it. Thanks. I'm not sure that we need the keepers then... a bit ugly imo. I prefer to keep tack, particularly the bridle, as simple as possible. While keeping the horse as comfortable as possible. If that makes sense.
See, smrobs, post 122 and 124 I asked about the keepers, because besides the safety factor, I just see them doing more harm than good. I haven't gotten a satisfactory answer yet, but then, I'm hard to satisfy...
All this aggravation ain't satisfactionin' me....
A little more bite, a little less bark
A little less fight, a little more spark
So open up your heart and--
Great choice! No, you do not need bit guards; and I'm unsure what you are referring to about a lip strap?
Actually many people think of it as a means of preventing the bit from being pulled through a horse's mouth but it's not. A lip strap is meant to prevent a horse from being able to lip the end of the shank - grabbing it so that it's ineffective and can be somewhat harmful.
Again with the useful discussion, thanks guys I just learnt even more about bit keepers from the abovementioned linked thread and am off to fashion a pair of keepers for Piper's single jointed fulmer bit.