All you can do is thoroughly research the process involved to replace the display and weigh up the pros & cons. It wont be easy and no one can really say because it's all down to the individual and how meticulous/organised/observant and patient/careful he/she is.
ifixit.com and
powerbookmedic.com have how-to videos and pull-apart guides which are handy.
You have to be 100% sure of yourself that you have researched and found both sides of the argument and fully understand the things that can go wrong. There will be folk who have been there before, some will say it's a walk in the park, some might have encountered steps that they can't get around and there might be real dangers of ruining your MacBook.
I just recently replaced the speakers in my iMac Core 2 Duo and I had researched it thoroughly and had the guides on another computer BUT I encountered a step that wasn't mentioned and I stupidly kept working despite it being late and I pulled the antenna from off of the fitting attached to the Bluetooth Card. This step wasn't in any of the guides and it took me totally by surprise. I thought I'd ruined the Bluetooth capabilities of my iMac because not only could I not fit the antenna wire back into it's tiny fitting, but I lost the fitting in the process.
My point is even though you do your research and work meticulously, it has to be your call because you always have to expect the unexpected and be able to deal with it.
replace display in 2008 MacBook 13"