patch dry wall behind light fixture

I am looking for some help in coming up with a way to finish off the tile around the fort of my shower/tub. The tricky part is where the tub meets the front wall; when the previous owners installed tile they went over top of the sheet rock and plaster, which overlapped the cast iron tub. So to get the tub out we had to break the corner bead and plaster. The old sheet rock and plaster combination ends up being about 3/4" thick, so I would have to put 1/2 cement board and then add 1/4" cement board on top to meet where the metal corner bead is. The issue is that if I trace a line from the edge of the existing wall down, I only have about 1" of space between the tub and the edge of the wall which hardly seems like enough room to put tile (I am tiling the shower with horizontal 24x12 tiles). If I stop the tile in line with the tub its going to stick out about 1" past the tub, then what do I do along the edge of the tub. Removing the corner bead would be very difficult without destroying the plaster on the rest of the front of the little wall, so I want to try and avoid that. I am trying to come up with a way that I can tile the front and then finish off the bottom, and I cannot seem to come up with a good idea. If I tile front face of that little wall I don't think installing tile over the metal corner bead is a good idea, removing it without destroying the rest of the walls seems difficult too. Anyone have any ideas, or need any more information or pictures to help me? [img]https://cimg1.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1500x2000/img_4436_df490f46251a424b59f704b280817a3f7008fecd.jpg[/img] [i]Tub is flush again the studs, but the wall is thicker than the framing by close to 1"[/i] [img]https://cimg2.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1500x2000/img_4437_e6b433f7f72e3f5d951cca84022b69680c949587.jpg[/img] [i]This leaves less than 1", so tiling it likely won't work[/i] [img]https://cimg3.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1500x2000/img_4438_dd58a14553a3533454f3b0552587fa4ace71a0e3.jpg[/img] [img]https://cimg4.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1500x2000/img_4439_e0b0252b6787e23fe1fa41995a77549580be08e3.jpg[/img] [i]Metal corner bead imbedded in plaster.[/i]

I am remodeling my daughter's basement which will be a toy room for her 3 young kids. The present walls have wood paneling on them and I want her to paint them, which she is fine with that. On the bottom of the walls I have started to put on a wainscoting type of panel which goes up to 36" off the floor. When I put the panels next to each other there is a small gap that doesn't look the greatest. I am planning to use a caulk to fill those slots then paint over the panels and the caulk. What type caulk would be best for that or is there a better way to finish the panels. I have two walls totaling about 20 feet up so far with about another 30 feet to go. Thank you for any suggestions. Rich