i had every problem you describe on my 85 380sl. all except the tinted glass.
1. door lock, the problem was the lever entering the outside door handle was inserted too deep into the door handle. the adjustment needed was to loosen a screw, set the lever at the next distance setting (it is adjustable) and tighten the screw. cost of part = $0. time involved to find the problem by eliminating everything else = 2 hours. in order to get there you have to take the door panel off which is a bit tricky, you don't want to do this without searching on this forum for a step by step. if you don't find good clear info i may still have a really good copy printed up.
2. window, good news = you need to have the door panel off to fix this (above). 2 birds with one stone. when i took off the door panel i found 2 loose screws laying at the bottom of the door skeleton. with a light and some peeping around i found where they had fallen off from. one of them was the window track adjustment. without the screw it was a little loose and left play for the window to move. i found the proper position (easy to spot visually), fastened the screw and no more window problem.
3. gas pedal was fun. open the hood, take the air filter assembly out. have someone lightly press the gas pedal several times. follow the linkage from the firewall. along the way i found 2 round plastic bushings were missing, one plastic roller guide worn down. also took the time to lubricate everything that moved. cost of parts was around $8 from the dealer. it eliminated 90% of the play and made the gas pedal transfer the feel of the motor better.
4. hard top hs very fine zig-zag wiring going up/down (not sideways like most cars) for defrost. if someone put tinting on the window you will never see the wiring, it is hair thin. removing the tinting will probably destroy your defrost wires. if you can live with it, leave it alone.
5. body is 107, r107,w107, any 107.
6. repair manual, only one choice. the one put out by MB is regularly available on e-bay for around $15. there is (almost) nothing else out there. if you have a good local library, go to the reference section and look under automotive for Mitchell reference repair books. at my place i can not take them out of the library so i have to make copies. between the MB manual (which just has a wierd way of directing repairs), the Mitchell book, and patient time just looking and trying to figure out the problem you can get most everything done. this forum helps alot.

all in all the problems you describe should not cost you much (big smile) and will require you and the car to spend some quality time together. feel free to stop by in new jersey and i'll give you a hand.