If you plan to brute force success with a bot farm, $2k isn't going to be enough. The key to a successful bot farm is having good problem solving skills and being data driven. To have those two attributes you're going to either need a developer full time to edit scripts and create the platform for logging and reviewing the data, or you'll need to know how to do it yourself. With $2k you could get a few decently written scripts, or 1 really well written script that's full automatic lvl 3 -> whatever goal.
Even with the fully automatic script though, you'll need edits made to it constantly to avoid the inevitable bans, and the changes don't come cheap if you can't edit them yourself. I feel comfortable saying that any large scale farmer falls into one of 3 categories: They write their own things, they're partnered with someone who can write things, or they have very easy and constant access to accounts at the appropriate levels for their method.