I can answer this for you. Profitable? No, but if you have high range bonus or void, you come close to breaking even. I imagine you'd be spending at least several mils on 60-99 range at the guild. Mirror client? Highly advised. I used to be insta-banned but with mirror client, I've remained unbanned for 3 weeks going strong.
I did the math for you in regards to 60-99 range at the guild. Doing 3-4 hours on weekdays and 8 hours Saturday and 8 hours Sunday, this comes out to 25.5 hours at the range guild per week.
I assumed an average xp/h at the range guild over the course of 60-99 to be 45k xp/h. With that in mind, you will need to train for ( 13,034,431 - 273,742 = ) 12,760,689 xp at the guild. 12,760,689 xp needed divided by ~ 45,000 xp/h = 283.57 hours. Because you'll be doing 25.5 hours a week, it's going to take you 11 weeks (or near 3 months) to complete.
If you want it sooner, there's probably not much better of an option when it comes to botting. If you have the money, start chinning at 80 range.