Cut them. Why?? From the factory they came as metric fasteners. The closest fractional analogue is a 7/16ths capscrew and you have to resize the matching frame holes ever so slightly. A rotary file on a drill motor or even just a 7/16ths drill bit does the trick. Even try just fitting a bolt into the hole by itself first. It might surprise you and drop in.
Totally agree that cutting them is a PITA and that you have to be careful not to ding the mount. Thing here is that, from the factory, the bolts came in from below because the factory installed the frame portion of the mounts before they plugged in the lower control arms. Replicating this method to re-install the bolts is possible, been there, done that, but it is a monumental wrestling match and the meanest, most miserable part of it is to keep the bolt installed in the box end of the wrench. The tape trick will work, and I think that I used liquid pipe thread sealer at one point as well. You can even use locktite to temporarily attach the bolt to the wrench and if possible use a 6 point combination wrench instead of a 12 pt. Makes it easier to secure the bolt.
Nick