Nah, it’s definitely not more if you’re keeping things comparable. You can do everything in the torsion bar suspension to the same level as the coil over conversions with all new aftermarket components for less than the coil over conversions. The last time I priced everything out even with the Borgrson it was close to $1k less than a standard coil over conversions OOTB.
I’ve itemized that comparison multiple times and posted it here. Even with the fanciest stuff out there and all brand new parts I’ve never had the torsion bar set up with aftermarket parts come out more than a standard coil over conversion.