Time for a new cab???

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Well I found quite a bit more rust in the windsheild channel today and I'm not quite sure what I should do. here are the pics....





I also have a huge amount in the floor and rockers....





I had planned on fixing the floor myself, since it will be under sound deadner and carpet and no one will see if I screw up. I dont think I can tackle the windsheild channel though. Anyone have an idea what this will cost to repair at a body shop?

I'm seriously thinking of ditching the cab now, but my father gave me this truck and if I do that there really wont be anything left of it but maybe the dr side fender (if I dont find lots of rust there). So then whats the point of keeping it? I have two kids now (and one on the way) and I cant afford 2k in body work just to get it solid. Its got me really down on the whole deal now....