as for motor/trans mounts they are simple to fabricate with the most basic tools and scrap steel
this is similar to what i built in truk 1.0 for motor mounts and a trans x-member
i used some 10 gauge flat plate and 1.5'' square tubing, cut everything with a $12 harbor fright grinder and cutting wheels
all rubber parts are 68 chevy truck, they are easy to find and you need to give a year/make at the parts store