I would give Thor's MMUTools a try - it's a real comprehensive package of tools for tweaking and fine tuning. It includes (for example) the famous loadmodule for loading single Kickstart modules, the patch for Shapeshifter/Fusion RAM reservation, special 680x0.libraries (0x0 = 030, 040, 040) and many more. By the way: AmigaOS 3.9 setpatch is compatible/aware of Thor's libs - which is no wonder, 'cos Tobias Richter were part of H&P's developer team back then (AFAIK).