It's good, laid back and quite IDMish. Like you pointed out I think you should replace the stock drum samples, anyone who has even touched FL studio will instantly recognise them XD. You can always be creative and use some of the synths for drums, you'll be surprised at what you can get out of white...

Tough question. I'd probably get a Roland D-50 then a helluva lota effects, or maybe a Korg R3, or a LP...

I doubt anyone here has played every single synth ever made (or anyone for that matter).