There's no need for Adaptus in a 130XE (Rapidus is installed on a stack of precision sockets, which isn't great, but it works). The Adaptus CPU adapter will fit in a 130XE, however, but since it ships with no U1MB header pins attached (at least, the one I have has none), you'd have to solder a connector on anyway. The final issue is whether Lotharek will sell you just the CPU adapter board (Adaptus comprises two daughterboards: one sits in the CPU socket, and the other sits in the OS ROM socket), and without a Rapidus.
Oh... I guess there's another problem too. Most XEs don't have a socketed CPU, so you'll have to go to the trouble of installing a socket under the processor in order to fit the CPU adapter, instead of simply soldering four wires to the CPU legs, which 100 times easier than removing a chip for someone hesitant about performing any soldering in the first place.