I remember back then when I have my 1st compact camera it was 2004/2005 if not mistaken my compact has video feature where actually my compact maximum fps is a way bellow than 24 fps. (for normal purposed video).

there was a school project which enforce us to do video kind of thing. since we were student and DSLR or handy cam is out of budget I decided to give my video function in compact a try.
as the result the video function in my compact is actually the biggest flaw of my compact. It didn't serve me well. as it will give you a sense of laggy feeling. (I think you can imagine this)

in the end I decided to throw away whatever I and my group did with the compact video function and just snap the picture one by one as it making the sense of motion.

IDK what will happen actually if your memory card a way bellow than standard for video as I don't do video with my DSLR.
but. . . I can sense you will experience what I experienced back then. anyway good luck bro

err.. FYI 35 f 2.0 is 1k something.
so d7000 body new set will cost your 3.8k (quoted from LYP) or you can get cheaper if you are a good bargainer.
50mm 1.8 = approx 350
35mm 2.0 = approx 1k
35mm 1.8 = approx 780
1750 tamron non-VC = approx 1.1k
1755 tamron VC = approx 1.7k
1850 siggy = I am not sure but I think 2k ++
1755 VR kit lens. = second hard 300 - 350.

update*
1870 kit lens Nikkor = I got quoted second hand 580 <- IDK I really wanted to have this lens

so it's now decision. make the best combination with the minimum money 

You can try google more about filter and decide whether you think it's worth to buy one and it's necesary. Yes it can help to protect the lens, so does the hood. The problem is mainly the price of the filter.
It's also mentioned that filters "will" affect the photo, altough it may not be noticeable in most situation, but when people test, they only test for that particular moment, so it's hard to say in real situation, if happen the filter affected without the photograher knowing. You might find some experience/senior pro photographer never use it, and also some shop seller honestly tell you it's not necessary (very rare as it's one of their biggest source of income).
Anyway, the decision is up to you; As they say, if you want to get a filter, get a VERY GOOD one, which will be $$$$$.

Surveying is ok, what I mean is, spending time, money (petrol, tol, parking fee, etc) to go all the way there and to few shops, etc. The time and money wasted is not worth it, in the end, you're actualyl paying more even you managed get RM4400. BUT, if you're passing by, dropping by OR maybe you enjoy the process of surveying to learn and get to know, then it's a different story "lah", hehe

For your photography style, the kit lens might fit those mixed photography style; You can invest on a prime lens for those lowlight situation like indoor parties, gatherings, etc. The 50mm f/1.8D is a good low budget prime lens, but if you have more to spend, you can consider the 35mm primes which is more usable for indoors, food photography, small group, etc. The 50mm will be better for portraiture.
Will advice you to invest on a Flash Gun as well, such as the SB700. The Flash will make wonders to your kit lens especially indoors/lowlight situations.

For HD Video, if you use lower speed card, the video will fail to record (if you're on HD). D7000 have smaller buffer (in camera memory) compared to the Canon 60D. If the card speed is not fast enough, it will fill up the buffer. So, if you have slower card and you're using continuous shoot mode, once the buffer fills up, the burst will slow down as the camera tries to clear the buffer to transfer to the memory card.