I apologise in advance if my response is too long, it's just very frustrating to hear the nonsense most people refer to when it comes to DNP.
First to address the OP's original question:
If she is going to take DNP the dosage should be based on her weight since you're looking for 2mg/kg for a low, safe dose that will still give her great results. DO NOT; I repeat DO NOT increase the dose because of her measurements or what the mirror shows. DNP will cause bloat/water retention, which goes away a week or so after you come of it.
Avoid anything that will increase your temperature further; this includes clen & ephedrine. T3 is also not required on DNP unless you plan on running it for a long time (months not weeks) as usually by the time your thyroid output starts to be effected, your already coming off it.
As far as being safe goes, water intake is the most important thing. If you look at the horror stories about DNP, the deaths are always a result of dehydration. She needs to drink gallons of water. This is not a joke - GALLONS.
I highly recommend searching for conciliators posts on here. I followed his advice on necessary supplements and saw great results. Warning: cataracts are a bigger risk for women on dnp than men, so vitamin C supplementation is vital.
Now, onto some of the rubbish you hear from uneducated individuals:
The argument of "DNP is a poison!" is completely meaningless. Most people who make this argument with nothing else to contribute are usually talking complete broscience. DNP is a metabolic poison, it messes with your metabolism, ATP levels among other things to allow you to burn more fat than physically possible. In other words, to be a magic pill for fat loss it HAS to be a metabolic poison.
There is a 2011 article from the American College of Toxicology that includes a list of deaths with DNP a contributing factor. Anyone who can find it I urge you to read/upload it. There has only been around 10 deaths in the last 20 years related to DNP. More importantly, the deaths were due to either a) severe dehydration, b) a specific reaction unique to that individual or c) OVERDOSE. I believe in one example they found 3g of dnp in the body - ridiculous to say the least. To summarise, control your dosage, binge on water and any sign the side effects are too much - stop.
Also, comparing t3/diets/clen/albuterol to dnp is like comparing a natural bulk to an AAS aided version; completely different league. To say other things will get you the same results in the same timeframe is idiotic. The fat I lost on dnp with a small deficit (15%) in 3 weeks was far higher than what I lost on a psmf (very low calorie) diet combined with clen in the same timeframe. Nothing comes close.
Now I can completely understand trying to protect the general public from DNP because, frankly, their stupidity gives our community a bad reputation. They hear "higher dose = higher fat loss" & ignore everything else. The parents then blame the Internet for making it too easy to find DNP. Maybe from this standpoint it's probably better to make the public believe it is a dangerous poison leading to guaranteed death. But that's a different argument for a different time.