Kwalka and SanJosse, I did consider sending you two a PM about this, but since we are still MAYBE in a voting mood, I figured lets see what5 "The People" think.
I myself have never had a problem with asking for or accepting help. I do have a problem when the guy on my left shoulder says "

stop taking advantage of people" and the guy on my right shoulder says "

Screw 'em".
Kwalka, SanJosse and your helper(s). I vote that you AT LEAST raise the price by .25 to.50. Now if you have already factored in a few extra cents, I don't see it. This is taking a lot of time, energy, thought, planning, typing, keeping the spreadsheet secure, updated, answering all of the questions on this thread, wrapping, packing, and probably even gas to get these things to the Post Office. Not to mention IF you do take these to the PO, if you have to stand in line so they can check each package........JEEEEEZE,
I vote that you get something for your time and work. I want to be put on every list, every time, TFN. IF AND I DO MEAN IF, you continue to do this. It is gonna get old fast and unless you get SOMETHING besides a hundred "Thank You Very Much"s" it is gonna be too easy to just one day say, "I AM DONE"
Hell, turn it into a smalll "RBA wick, wire and mesh shop and sell to those other vendors selling the RBA's. I know of one that "MIGHT" like I said "MIGHT" be interested in something like that. Or, just keep doing what you're doing, charge a few extra cents so you make something and we'll plaster you all over the damned forums. All of them.
Personally the guy on my left shoulder just asked me "What's the big deal? $2.15 or $2.65, or $2.15 and $3.15 plus PAINPAL's cut? If everybody here had the knowledge, time and (Speaking for myself here because I am LAZY) initiative, we wouldn't NEED you guys. 1st rule of business, Find a need, then fill it.
If anyone agrees, hit the like button. If not, speak up. If it doesn't go through, do like I will next time, I will throw an extra 50 cents in the next payment. I wouldn't suggest any more than 50 cents to $1 right now because before you know it, he's rich and we're out a good supplier.