Yes, I totally agree with you on the weight and solid feeling too.
Your entire lenses are prime lens what abt Zoom lens??
Im aware prime lens is better compare to Zoom lens cos for the f-Stop
May be I should look into prime lens with a longer range.
What abt film?? Any advice??
I saw there are so many films.. I was so confuse which one to choice for
Thanks for the advice and sharing your views.
The reason why the most known manual lenses are primes is for a reason

If you really want a zoom, you may want to consider the Nikon 28-105mm f3.5-4.5. It is one of the most value for money lenses and you would have pretty wide a length covered.
For film, there are lots to choose from and sometimes, it is really a matter of personal preference.
Since you are shooting street, you probably would want to keep off Velvia. It is a bit too saturated and the human skin tends to be a bit too orange. If you are on a budget, the Fuji Superia 200 and 400 are pretty good choices. Want a little faster? Can try the Superia/Press 800/1600.
Just bear in mind that the faster the film, the grainer the pictures.
If you want to shoot black and white, you can go for film like the Kodak BW400CN, Ilford XP2 or the Fuji Neopan 400CN. The reason for this is that you can just develop these film in any developing studio as they are processed using the same chemicals (usually C41) as coloured film. Also, these are fairly fast film; rated at ISO 400.