Hi all, I'm in the planning stages of a Street Fighter V bartop that I'm building for my brother's upcoming birthday. Before I completely commit to the project, I was wondering if I could get some recommendations on controls and the bartop form factor since I am totally not a fighting game guy. I've done some research on shoryuken.com but it seems that there is a million opinions out there.
1) From what I've read online it seems you can't go wrong with Sanwa JLF sticks and octagonal gates. For the buttons, do the short Japanese buttons mean that they have a short throw and can register a press much faster? I'm also trying to find one that incorporates an LED but I haven't found any that are built in like the longer buttons. Also will the Zero Delay joystick encoders be fast enough (not laggy) to support the twitchiness of fighting games.
2) I've built a more traditional Pacman bartop but I'm looking to build an unique bartop that rifts on the Vewlix shape. Something like this:

My only question regarding this is if it would be stable enough and heavy enough to support the jerky movements that Street Fighter players utilize during a match. Our should I build a 2 player bartop that is traditional and heavier like this

3) What do you think is a good width for the control panel for 2 average sized players?
4) 6 buttons or 8 buttons? Its gonna be a PC build so it seems like I don't need the extra buttons found on a console control. Am I missing something here?
Many Thanks!