Hi There 915stag51................I actually purchased these ones some 6 years ago...But I believe that there are quite a few 1/6 scale figs that pop up from time to time on Ebay... There is a guy that appears on there from time too time who makes some awesome custom KISS Figs.. They are fairly priced though, but when you see the detail in them you can see why... If you checkin to ebay and key in 1/6 custom Kiss Figures or something of the like you should almost definately find something that your brother will like.....There are also some 12 inch MEGO kiss figures from 1979 that sometimes appear on Ebay.. I dont know of any stores as such that actually keep any KISS figures these days, however you could try some of the Heavy Metal type Music stores, as this is where I actually managed to pick these 4 up funny enough by chance....
I hope that this is of some help to you, and If I do manage to come across any KISS Figs on ebay I will send you a PM.../
Regards
Fett1.................