I am thinking of doing the same thing you are doing. I was playing around with cobra gear in dynamis today and found that with Zha'Go's barbut (not switching that out), cobra harness, cobra hands, cobra subligar, cobra feet, and rajas I was getting 21 tp per shot as rng/sam. Adding all that up I had store tp +21. I also have an almah torque which is store tp+2 but I found that unnecessary to use. When I did try it, I got back 22tp. When I weaponskill with my weaponskill gear, I got back 19 tp so I found 21tp return ideal. Now, I do not like the idea of using cobra harness when I have a mirke so I was thinking of getting rid of my ranged attack+10 on it and getting the subtle blow+4 along with snapshot. I lose two store tp but it turns out I have enkidu subligar which I forgot has store tp+5 on it. Cobra subligar only has store tp+3 so doing that switch keeps me at store tp+21.
What gun are you using? RNG/SAM only needs Store TP+2 for Hellfire+1 to be 5-hit, so Rajas alone would cover you (and you wouldn't even have to wear Rajas during WS).
Perhaps you meant a 5-hit as RNG/WAR? You need STP+17 for that, which would require much of the gear you cited.
If you wear only Rajas during WS, you'd still need STP+21 on your other shots, as you planned. But if you can manage to wear Rajas+Enkidu pants (STR+9) during WS, then you only need STP+19 during TP phase, which you can accomplish with Rajas+Enkidu pants+Cobra hands+Cobra feet+Almah Torque (a better substitute for Almah Torque might be Chivalrous Chain+Brutal Earring, which would provide 1 more STR than Almah+any earring). The benefit of going this route is that you can keep your RATK+Snap Mirke. Edited, Dec 15th 2009 11:29pm by redvenomweb
Terraxia - RNG/COR/THF - Midgardsormr/Quetzalcoatl (boxed)
Viper Beam - ARC/CRP - Fabul