a) Sounds so easy. So why didn't you rip the "Hong Kong film industry for ideas" (or any untapped industry) to get YOUR start? Why didn't 10,000 other aspiring directors at the time?
b) Tarantino never said he doesn't get what he likes from other directors. If anything he made it absolutely clear that he's a great cinephile, and that he gets inspirations from several kinds of genre movies, to the point of having his characters reference old movies by name, or hiring actors that played originally in those movies, and of course, waxing lyrically in his interviews about their directors.
He did copy parts from Hong Kong movies (e.g. City of Fire) but it was the less relevant to being a director parts -- the plot. The cinematography and direction etc is totally different.
Tried "guy believes he's an alien movie". No dice.
"Alien visits psychiatrist movie". Again no dice.
Used the first with Google, first hit: K-PAX (correct).
Not very impressed.
My advise would be listen to actual professionals who've used DSLRs/Mirrorless in these and even worse conditions.
Not all DSLR "have some type of restriction for long shooting because of heat". Some DSLRs have heat issues, others do not (including cameras like the URSA).
A restriction some DSLR's have is a 29 mins limit for continuous shooting -- which is something entirely different, and done for tax purposes (so they are not classified as video cameras in Europe and get a higher tax rate).
Seriously? "a camcorder"?
It's 2016, we have been using DSLR and mirroless video for TV/Documentary and even feature files for almost a decade...
Yeah, it's not meant for Americans.