recommendation for Fermenter for Pichia Pastoris

[ab]

Dear all,

 I am looking a buy a Fermenter for large scale (max. 4-5 l.) culture of Pichia pastoris to high cell densities. There are two models I am looking at

1) the Bioflo310 from New Brunswick

2) labfors 5 from ATR

Of course, I need all the usual stuff- temperature control (through a water-jacketed system), O2 concentration control. pH control, feed lines for MeOH etc. Does anyone have any recommendation to make, from either of these or any other one ? Will be very helpful

Best,

AB.