The
Spike CF10 would cover your needs. It has a working pressure level of 15psi, so more than enough for transfers at the start and carbonating in conical later. Since I got the pair of CF10's, I've been carbonating batches in them. Makes for a shorter time from grain to glass and much better carbonation levels. I also harvest the yeast from batches to reuse. Add a chill coil, and either a glycol chiller or other method to move cooling solution through the coil, and you have easy fermenting temperature control. I picked up a IceMaster Max2 to do that, since it's a turn-key solution (pumps and controllers built in/included). I'm actually looking to sell it so that I can get the Max4 since I want to add conical number three soon.
I went with additional items, beyond just the conical, with the first pair. Chill coils, short leg extensions, support bracket, wheels, and such. Sure, it's not a cheap item to get, but I consider it a "buy once, cry once" deal. I can use the same carbonation stone with any of the conicals I have/get since it's a standard 1.5" TC connection. Spunding valves are from SS Brew Tech (I like their design best). With three 1.5" TC ports in the lids, one can be used to add dry hops via a CO2 purged method. I would recommend getting a different sampling valve than what Spike includes. Such as what Brewers Hardware offers, along with the pigtail. This allows you to pull samples for both flavor and carbonation level easily.
With my next CF10 purchase (and future ones) I'm going to see if I can get the sampling valve deleted from the order. Since I won't be using that one. I'm also looking at the racking arm from Stout Tanks to see how I like that one. I need to take some measurements from one of the ones I have now to see how they compare for reach.
BTW, I was using kegmenters before. With how I needed to use a fermentation chamber for any kind of temperature control, and how more difficult it was to move, switching to the conical fermenter was an easy decision. Especially since my brew bitch is out of state for the next ~18 months (or so). Moving a kegmenter with 10+ gallons of wort/beer in it into the chamber (even when it's a small step) just isn't something I wanted to do. Plus, the chamber had a larger footprint than my current two CF10 configuration. I can also have either of the CF10's at a different temperature for doing different things. Like fermenting one at 70F and chilling another to harvest yeast or carbonate.