No, but id probably go at least i1 display. I had the previous version of the C3 and was never impressed. Their C6 is the Spectracal version of the Chromapure D3 Pro I have, it just has preloaded profiles from a reference meter for plasmas and other display types. The problem is the profiles might help, but as I proved last night, they arent as accurate (I also found the same low green and high red/blue vs Gregg's Photo research meter) as they want you to believe.
Im not sure how much you want to spend, but one option would be to get the I1 Pro 2 and the C3, and you can profile the C3 off the I1 for your low light work. I have not purchased a pattern generator, I used to have an Accupel 4000, but havent felt like spending the $1400 for a 5000. Currently, there are two discs on AVS I like, one is by Masciola and the other is the Gamut Calibration Disc (GCD). I use these in my Oppo and feel they do a great job, plus the math has been tested and their patterns are correct. AVS709 is great, but their windows are too large for a plasma, so I use the Masciola disc which has 6.5% sized Wwndows. This is the size THX and Panny went with for the THX modes.
Chad B also has a disc with 4% patterns. I recently checked his disc vs 6.5% and 10% on Masciolas and found little variation. Biggest issue is adjusting 10pt gamma if the window is too big for the plasma and ABL kicks in, you want to make sure you have something small enough. For an LED LCD, you can use full fields so the test pattern matters little. I'll probably buy an Accupel by years end, since ive invested in an i1 pro 2, there really is no need to hire anyone now; I might as well get the generator. If you spend the top money on the best Accupel, it has 3D patterns and motion/resolution stuff built in.