cost of getting into turbines.
Matt,
Let me offer a different perspective on the issue of converting 45/90 DF jets to turbine power.
I concur with your observations of the building (and flying?) skills of the average (wanna be turbine) modeler. But instead of steering them away from the MUCH cheaper (and just as successful) entry level turbine options offered by JHH, in favor of more prefabricated (and therefore "idiot proof"???) alternatives at 2-5x the price because you don't think they are capable of building a JHH jet, my opinion is that any modeler who is not capable of successfully building (and flying) a JHH jet kit should not even be eligible to participate in this sector of the hobby (i.e. turbine powered jets).
Demonstrated skill/capability should be the requirement for entry to/participation in this sector of the hobby, not the depth of your pocket (which can be utilized to temporarily disguise the lack of skill/ability...according to your comments/suggestions above).
Just my humble opinion.
Peter