Freds 73 Scamp restore on a budget

I striped the trunk all most all anyway. I used POR-15 and as some people don't use the metal prep that POR-15 has before coating the paint on, I did. Then etched primed and used Raptor Bed liner on the trunk and inside and under side of the car. I didn't have a rotisserie and decided to lay on my back to do the under side. Not really the best but the under side was in great shape and had plenty of under coating on so minimal rust. Did I do it the right way ???? just doing what I think is good enough.