In my opinion, you got excellent advice earlier in this thread from Donald Miller. Start with a rock solid, well damped tripod and a small lens aperture.
I have maintained a love/hate relationship with Tech Pan for many years (26 or 27). I have been testing it again, recently. It is a special purpose film. It is very unforgiving in pictorial applications.
If you use Tech Pan for a nightscape, consider gas hypersensitization (an old astronomical photography trick) and D-19 developer to deal with the long exposures.
If you are contemplating color film, gas hypersensitized negative color film would likely be a good way to go.
I second Don Miller's recommendation of Efke 100 film developed in Pyrocat-HD with minimal agitation. Biting Sharp! However, you will still need to deal with reciprocity failure.