I went recently with ghost + 5b's, hl11+A104, fap 80. I could handle up to watcher, soldier was a bit too tough for me. The way CP is laid out, dome 1 has the lowest maturity, most weak/strong with a few watchers and like 1 soldier. I stayed there (with a quick jaunt to dome 2 just to say I killed a kreltin.)
Ghost/5b was just fine, the problem though is that the regens are random. You are constantly getting jumped by multiple aurli. On average, I was fighting them 3 at a time. Also, don't expect to play eco there. On 200 ped ammo, my armor/fap/plates repairs alone were around 30 ped. I went with ~19 evader, but the armor took the brunt of the damage.
Teams are best, but what I also did was stand back to back with another solo player, and I took the ones that regenned from the rear, and we would help each other if we were getting mobbed.
I don't expect to go back anytime soon though. I did 600 ped ammo, I got 2 globals and 1 hof (~300) and barely broke even though it was my first trip (repair cost wiped out TT profit, and I had nothing worth selling to bring back.) In comparison, my first trip to CND I spent ~600, and I got 2 hofs, many globals, and like over 200% TT return.
So, my advice: if you are going just for the experience, what you have sounds OK, but you'll probably just stay in Dome 1. If you want the full experience in all the domes, you'll probably want at least to be on the high end of Category 2 in Merry Mayhem or the low end of Category 3. I'm in the middle of cat2.