Alright, just to shed some information on our previous experience with RP in this community.
Firstly the worst one: DarkRP.
I was the one mainly managing this mod, but I have to agree, I failed horribly.
It was meant to be a customized DarkRP, but sadly we had trouble getting everything to work, textures didn't want to render (or not completely), lots of errors in the default DarkRP code which I had to fix, and believe me, at that time, the code of DarkRP was written like that guy had fatty fingers with shit covered all over them, so many typos, syntax errors, misuse of functions, etc.
People were QQ'ing all the time asking why it isn't released yet, so I tried to rush things, which wasn't really the greatest idea.
On release, everything seemed to work.. for the first hour. Then all hell broke loose. Errors that I have never seen when testing alone arose (still from the owner of DarkRP). Lots of stuff causing lag, etc. So after a long time tinkering on the code, people lost interest and it became too much time-consuming for me to fix everything, so I decided to just quit the project.
And now for PERP.
Paralyzed bought the gamemode (which we are thankful for this that you did it to support us!), had a few bug/errors in the code which he, Spiral and Chainedlord fixed.
An admin named Guy had a great Dedi to host this on and provided it to us for use, in exchange he would be able to also manage PERP.
Sadly that decision soon turned against us, as he started to abuse his powers on PERP, thinking he could get away with it, so after a while we decided to switch over to Amit's second Dedi as the host. Everything worked fine, until some DDoS' came our way.
We had quite some issues with it, but we kept an active userbase after the DDoS'. The higher ups also had to deal with quite some admin abuse, but nothing we couldn't handle.
After all of this, we lost contact with Amit, he never showed up anymore and never payed the bills for the second Dedi, so Spartan had to jump in with SG's funds to cover it for another month or so and Amit promised to pay it back (never happened).
So eventually we had to decide to drop the second Dedi, which contained PERP and some other gameservers. Byebye PERP.
TL;DR: DarkRP: Died because of bad developer and insufficient time to finish it.
PERP: DDoS issues and mainly expensive Dedi which never got paid anymore.
Before I am going to make any promises with Yes or Nos, I have a few question that in my opinion are important to know more about before even thinking of getting this started. (Speaking of past experience).
What exactly is BuildRP? Your description of it is exactly the same how most of us would describe DarkRP. Any more info?
This Anti-Minge tool that you speak of, could you explain what it does? Because not needing an admin 24/7 as you said, means that this plugin has to be one of the best anti-minge/grief tool ever.
I saw you mentioned FAdmin, unless this has anything more than our current TTT admin plugin, I will disable FAdmin through the code, because you can't remove FAdmin's files without breaking DarkRP (IF WE EVER GET THE SERVER).
You said the F4 is not included and that it costs 20$, what do you mean by this?
What are those good and fun tools you speak of which most servers don't have, and what do they do?
How big is the gamemode in total? (The size of the folder which contains everything in it).
I might have forgotten some stuff.. but oh well, I might remember them later.
EDIT: Ah yes, I remember, for DarkRP, it wasn't specifically 1 developer's fault for the errors, but simply because it had switched owner a couple of times, which resulted in a couple of people messing with the code and breaking the other owner's code etc etc, resulting in a shitfuck of a program.