Just an FYI, Forgotten Nature is very poorly coded, and riddled with compatibility issues. I have played on a few modded servers that added that mod, but then were forced to start a new map and remove the mod due to world gen issues and overall bugs/crashes. I recommend you go without that mod, otherwise you could end up with a very unhappy userbase.
Firstly, it doesn't take a programmer to fix incompatibilities. All you are doing is opening text documents and making sure no numbers overlap between them, it can be messy work but it is not difficult. Secondly creating a launcher is very difficult without distributing the minecraft.jar which is illegal. Your best option would be to either try to be accepted in the Feed The Beast launcher (Difficult) or to add your modpack to the technic launcher (easy). If you have any further questions feel free to PM me
Yep and i am also planning to get more ppl to help me ask for perms and add mods to the modpack
i'm very good with words...