I would not use the key methode,the keys are easily broken.
Back then i cuoldnt afford the kits [ aint much changed now] but i like the kit with the remote on it ,nice man nice!
Any how back then i used an old starter sylanoid[or how ever its spelled]
Now i would reverse them and put the latch on the post side and run a rod down the post to my foot to open them ,but i would still like to be able to lock them and i havent got that figured out yet?
The suicide doors are duable with the stuff you have but its a lote easyer with the kits but i would set down and make my own kit [ive seen this done before so i know i can]and do a lote of reserch on that too ,i would put dead bolts on them too .
I love suicide doors but havent tryed it yet !so i'll be watchine ya close on that one flat!!!!
Gonna do a chop on mine soon and i'll be shure to post lotes of pics for ya![hope to get ya in the mood for a good chopon yours!]