sx350 box smaller tactical switch and 510 connector hole

this is an alternate version to the previous design which is a lot smaller in dimensions. i was able to take 1cm off the depth...note that the tactical switch hole and the 510 are just incisions and may need to be dremeled wider also a small incision may be needed for the battery holder to connect to the 510 base or the battery holder may need to be modified ...
the parts i had in mind are found here:
Tacticle switch:
http://www.ebay.com.au/itm/231254950279?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
Magnets for the lid:
https://www.fasttech.com/p/1555101
510 connector:
http://www.varitube.com/510-Connector--Spring-Loaded-Center-Pin_p_141.html
please post pictures of your designs once finished..i would love to see how you guys went with this design.