[Hozer 88GTConv]

The only thing I can add is that several special tools are virtually required for decent top installation.
If you know some guys at a shop, maybe you can arrange to borrow some tools over a weekend.
If you want to know exactly what I am talking about, I can tell you what the Ford Repair Manual calls for with part numbers for the tools.
I don't think they are overly expensive.
I will second what has been already said in that this is one thing you don't want to have less than perfect.