Tom,
I can't speak to your application since I have a '53 but I can give some advice on the motor mounts. I used the same TCI weld in mounts as Kent but ran into a problem when I went to put them in. I learned from TCI that their weld in mounts are designed for late 60's Mustang motor mounts that bolt to the engine. I'm assuming that your 90 Vic 302 and my 92 LSC 302 both use the same factory mount that won't work with the TCI weld in frame mounts. I just ran to the autoparts store and picked up the Mustang one's but did a fair amount of head scratching in the mean time.

Good luck - Brad