From the photos , the chassis dosen't look,too bad for its age compared to what we hear of jeep chassis damaged and rusted and rotted out. If it measures up to service manual measurement specifications , all the crossmember rivets solid , body perches and all welds solid , and passes the ball peen hammer test ( a good shot and it sings ) I would say take a heavy wire wheel to the pitting and rust and should be ready for priming and metal preparation . If there is a service near to you that can acid dip ( or whatever it is called nowadays to be environmentally correct ) , that would be a great step to thoroughly clean the chassis for a good metal prep , prime and paint job. Yes , there products that folks are just applying right to the metal as is , like Eastwood sells , but I kind of like the idea of starting fresh on a nice chassis like this so it will literally last for ions ! Just don't know what they get for that kind of service where you live . But peace of mind can be priceless if it comes down to it . Of course them spring shackles got to go in favor of areal lift kit , but that's for another day. May not have to get dipped , got a feeling a member who's restored their chassis previously may have a good and less expensive way . Real happy it looks as good as it does . Just had that feeling looking at the jeep as a whole that it wasn't totally driven like they stole it. As for the extra holes poked in the side for access , well , that can be welded up with some metal of the same gauge without much problem. My only question , which is always someone's question at this stage is , how's the inside of the chassis on the inner frame rails ? Hard to see that but we always want to know if rust is working from the inside out. The only way I know to stop that rust dead is the acid dip and rust inhibitors that the folks that perform this service usually provide . Last place I remember that did this work nearest to me was a truck,and bus rebuilder . That was some time ago but these services should still be available for restorations . Worth a phone call anyway. I know you want this jeep to be all it can be , just figured this would be a great opportunity to do so since all is left is to undo the leafs and what lines are left . They'll get replaced but you'll need them long enough to compare replacement to whether they're pre-bent ordered or you do the bending , they're the best model the replacement after for proper fit. Well , I feel better that you got a pretty good chassis to start with !
P.S. - forgot to mention the left and right front repair job that will need to be addressed with a frame replacement section . Not too bad else considering though . The rear sections look good !
By the way , I dig the camaro under the car cover !