It costs $12,000-$15,000 to get a built set of 60s linked with full hydro under a jeep. I don't think buying a whole jeep that has the majority of the work done for $10,000-$12,000 is a bad deal as long as the work is done right.
If you buy new, much much more than this. If you don't get all the bells and whistles, less. There are turn key rigs out there for around $10k. Just gotta follow up and ensure those rigs have the spency parts already some rigs have enough of them, others don't have any.
It honestly looks like there's the potential for it to cost wayyyyy more money and time than is warranted.