kit for megadrum!

hi everyone
i'm building a big electric kit to go with megadrum, but im facing two main design challenges (simple ones, but im stumped)
1. see on the attachment i have circled the joints holding the frame together? i have searched and searched online for the bars and joints to make this frame out of, so far i have got as far as using plumbing tubing for bars and wood-screw brackets for joints (not ideal). Has anyone any suggestions as to where i could get joints similar to those shown in the pic?
2. i am hoping to make the full 31 pads on my kit, so they need to be cost effective. much as i would like to refurbish 31 remo practice pads i simply cannot finance it, so i need to literally build pads from scratch. anybody have any ideas/links to maybe just an exploded diagram of the structure of a pad or something?
thanks in advance!
i'm building a big electric kit to go with megadrum, but im facing two main design challenges (simple ones, but im stumped)
1. see on the attachment i have circled the joints holding the frame together? i have searched and searched online for the bars and joints to make this frame out of, so far i have got as far as using plumbing tubing for bars and wood-screw brackets for joints (not ideal). Has anyone any suggestions as to where i could get joints similar to those shown in the pic?
2. i am hoping to make the full 31 pads on my kit, so they need to be cost effective. much as i would like to refurbish 31 remo practice pads i simply cannot finance it, so i need to literally build pads from scratch. anybody have any ideas/links to maybe just an exploded diagram of the structure of a pad or something?
thanks in advance!