Good morning, I'm currently an 800 commercial pilot, I've decided to finally finish up my instrument rating, and I'm looking for recommendations for the most economical place to get it done. I've seen estimates that range from as little as $4000 to well over $9000, I realize that the cheaper ones are probably quoting the bare minimums and it's unlikely to get it done in that amount of time, but that's still a big price difference. I have a little instrument time, but it's spread out over several years, so I consider myself to be starting from scratch. I'll have my written done soon, and plan on doing the flying this spring, I would really like to get it done in about 2 weeks. I'm currently living in southern LA, and moving to southern Wisconsin this spring, so somewhere close to one of those locations, or in between, would be perfect, however I'm open to other places also.

It's pretty easy to get an instrument rating in 40 hours. The cheapest way is to get 15 hours of dual CFI-I instruction and then split the time with a private pilot as a safety pilot. That's what I did and it was pretty affordable.

Yea, I've looked into that, but I can't find a reasonable rental aircraft near my home airport, that still comes to over $7000. I'm curious about the operations that advertise the $5000 to $7000 instrument in a couple weeks.

With 800 hours you should have no problem getting it in the minimum time. Basically how much time you have left to get the 40 hours of instrument is what you'll have to pay. The min that needs to be with a CFII but depending how proficient you are, the CFII may need more than 15 hours of training with you. Figure 4 to 5 hours of that is just your long cross country requirement alone.