at 10k% I doubt it too (checked auction 2day). I think the best way to skill healing is healing others for decay. Only prob is finding people that want to be healed.
So is there anyone that wants healing for decay cost?
Best place for that is treasure island (Hogglos).
Note that it's good (amost essential) for healers to have a working TP-chip. For hogglos, because hogglos are about 2 "jumps" away if hunter dies because of a critical hit (and then most likely you die in 10 seconds), and the hunter don't want to run all the way back. And, another reason, that the hunter and you can reach some more distant areas, and "you" can hunt in a land area which is hard to escape from without TP-chip. (Normally, at least I, give the ME needed for TP:ing).
The reason why first aid skills has become rare (on the market) is because of the new "L" faps which makes skills needed. With the old faps, the rule is that the more skills the more economic fap can you use (FAP-5) (with exeception of the uberfaps...) With the new faps, the eco is the same but with more skills you can use a more powerful FAP.
As a rule of thumb, to use the (L) fap which heals as much as mod fap, you need skills worth a mod fap...
Bad thing with L faps, at least for me, is that they are only looted from mobs in pvp4 or crafted by materials mined inside pvp4. (Disregard the one that drops from spider, if you can still kill a spider you probably have a mod fap already and you are safe in pvp4 anyway. I've heard something about blood moss mined somewhere else outside pvp4, but I guess it might be referring to mining at pvp4 border and you acutally find it the inside the border).
Good thing is that faps like 2600 has become cheaper again, and they are now quite affordable.