In my mod, the 9Mhz research is replaced by 100Mhz. Note that 100Mhz cpu's can barely make profit so this mod is highly recommended:https://www.moddb.com/mods/kinghugolis-higher-cpu-price-limit-mod .
It adds four sockets: PGA 72,96,128 and a 64 pin cartridge. More features are planned.