The UK pen knife is a great option, you can walk around anywhere with it and no one will bat an eyelash at it. I was recently given a Goddard recently. It's basically an Endura with thinned out handles and a thinned out blade. It's big for an edc but so thin. I was surprised when I slipped it in my jeans and didn't feel it.
If it were me I'd go UKPK or for the bigger side a Caly, but it's because I'm very partial to the way clay's and UKPK' feel in hand and in the pocket.
There is an s30v - g10 UKPK that is discontinued if you can find them. They go for between $65and $85 usually. Wonderful bargain for a modern traditional.