A developer I always liked, but that almost requires a selenium toning session afterwards (unless you like a green cast) is Ilford Bromophen.
I have used it diluted to 1+3 and have had good results from it. It's sold in powder form so shipping should be reasonable. It works really well with Kentmere Kentona paper and Ilford Warmtone.
I can't say that it's precisely like A-130, but it does display a really nice tonal scale, and its keeping properties was good in my darkroom. I used the same concentrate, stored in a glass bottle, for almost a year without any noticeable change.