Quote (Blankey @ Aug 21 2013 11:43pm)
So about a month, maybe 2 to play it safe? What level of programmer/web dev would have these skills (graduate student, current student at a good university?). What would be 'fair' pay to say have d2jsp designed from scratch.
It still depends on the how strong of a backend you want. Having it done in C/C++ will require a much better developer than for php. The notion of offer and demand comes in play too. C devs are much scarcer than php devs. Quality comes in play as well. Your average php dev will most likely leave some blatant security holes in his work. You would required a more seasoned dev to go over it later.
My advice to you is to look for a python dev. I haven't personally coded in ruby but I heard horror stories about it regarding security so I won't go around recommending it. Python is the right language for your task. It's not as demanding as C/C++, still strong enough for a forum backend, with quicker development time than C. Don't quote me on the price but I remember seeing offers for full forum overhaul in python in the $1-2k ballpark on freelancer. You should check the offers there to get an idea.
As far as skills go, in php, any scrub can do it. For python, anyone with a couple years worth of experience in web dev should be able to do it. For C, look for grad students, no less. Then again you shouldn't be looking for a C dev unless you want something extreme.