I've recently been making my own drop-outs out of 3/16" 4130 cromoly using the drill press, bandsaw, grinder, and files. You need the right taps if you want fender/rack mounts or a derailleur hanger. A pair of simple front drops or track ends takes about an hour. More complicated rear drops with eyelets and derailleur hanger takes about two hours per pair.
If you wanted to send me a full-size drawing, I'd give it a go. You can PM me if you'd like.
No, it panned out, I just wasn't familiar with the forum and apparently the thread didn't post immediately and I thought I forgot to submit it, then after rewriting it they both posted at the same time. Thanks