Ncueno-- please dont take this the wrong way PLEASE
You seem to be jumping around between goals and ideas and whatnot lately.... I feel likeyou need to dcide what you really want (hey, theres no right/wrong answer here)..is it to complete a half? Is it to gain strength and muscle (NROLFW)? Is it to lose the last 10 pounds? Is it to maintain your weight and body recomp? All of these are very different goals... i can say that if you want to really properly train for a half, do not expect to lose anymore fat in the process, unless you stop eating
Youre going to need proper nutirtin, and especially since you are battling those last pounds, i dont think they are going to come off easily.
NROLFW and half marathon training are pretty much polar opposites, goal wise, especially if you are in a caloric deficit. I think half-marathon training is a great idea, if you are in a caloric maintenace phase, personally..... youll get the most out of it, and your long runs, and threshold runs wont leave you drained and walking around like a zombie.
OTOH, NROL will definitely help in the body recomp area..tightening/toning, developing strength and muscle....
I highly recommend NOT doing an extreme deficit with either of these programs....yes, it can be done, and yes, you will survive, but you wont reap the intended benefits, and you could do a lot of harm (overtraining) that you dont even see that you are doing, till its too late....
Anyway, half marys are tons of fun! Best advice was already given by ennay, especially in terms of pace.. run the half at a pace you can run 13 miles at, ya know? Dont discount speed/tempo work, and for that distance i would focus on 1km/1 mi repeat type work for developing the lactic acid threshold. 200s and 400s and 800s occassionally are great for VO2Max, but since you arent being competive /going for a lofty finishing time(or training for a 5K) i wouldnt focus on them AS much. Look into lactic acid traingin though, this is where, in my opinion, you will reap the most benefit! And of course, your long runs (GO SLOW!...No---SLOWER!) RE: LA Threshold runs...take your basic, midweek 6 or so miler..... run .25 miles at 5k pace, then immediate transition down to 10K pace for .75 mi, and then 1 mi at goal half-marathon pace. Repeat. Or some such combination. Maybe half mi at 5k, 1 mile at 10K and 1 mi at half pace. Repeat. This will do 2 things: teach your body to function/run while processing out lactic acid from your system, and two, will also raise your lactic acid threshold, or the point at which it starts to accumulate. In other words, if you train right, your legs should feel as great at mile 12 as they did at mile 3 (ideally)
Good luck