If you have an immediate need,
I’d recommend first determining whether the LEAP Apache version is closer to what is in 13.2 or TW, then add the Apache modules repo for one of those two distros.
IMO this can be done relatively safely (not without some risk, so test first!) because IMO Apache modules are pre-compiled and should be closely tied to the Apache version and should be isolated from any underlying OS differences.
Interesting that the whole category of Apache PHP5 modules aren’t being compiled. Skimming the current Apache LEAP modules, there appear to be plenty of python and perl related modules…