Here's another option.
Rather then do the ATPL skill test with a CAA observer, do the CPL and IR single pilot route first. Do the various CPL and IR conversion courses and then the skill tests in a twin piston-the IR test at very least will be with a CAA examiner, probably the CPL test too depending on where you do it. Then you do the Citation 2 test in Paris and it NOW doesn't even have to be observed. Once you pass that test, complete the ATPL applicaiton and submit it along with all the original CPL/IR conversion paperwork and the Citation 2 paperwork, and you'll get the ATPL with the Citation 2.
Bit long winded, but an option.
PM me if you want more information.
HB