Not going to get into the wbx are gay thing again..
but the dwheezils aint so hot either when you consider the JX... You could still consider a petrol and fit a scooby...
If it were me I would think about how much and where you are going to use it.. and see which engine fits.. then find the one that is either great mechanicaly or great bodily... (but a rhd panel syncro might be limited) or just get Sycronuts to build what you want......
As for LPG... I never really found it an issue.. but then I did have a tank capacity of 76L..... (and put £50 of petrol in a year) the down side is the bigger the tank, the more room it takes up...