if your using the stock front suspension you do not need to modify or remove the x-member.
motor mounts are easy to make using 2x1/4 flat stock and a short piece of 3/8 steel tubing.
use a 68 chevy truck motor mount and weld up your own
same with the trans mount.
buy the rubber mount and fab your own with some 1.25'' square tube.
cut your steel with a cutting disk in a 4'' grinder.
nothing is easier than making your own mounts, even if your a rookie.