You are going to be very limited. Kohler makes a very deep 48" tub, the "Greek Bath": http://www.us.kohler.com/onlinecatalog/detail.jsp?from=thumb&frm=&module=Baths&item=103702&prod_num=1490-X&section=2&category=10&resultPage=0--1152873301 American Standard makes a 4 ft porcelain on steel tub that is probably much inferior in quality to what you are replacing. http://www.americanstandard-us.com/products/productDetail.aspx?id=237 They also make a universal access tub that is 48" long. This is one of the walk in tubs for the disabled or elderly and its list is $5000. Would you consider keeping it and just making a pink tub part of the personality? Another option would be to have it reglazed. There are positives and negatives to this. The results are not predictable.

I have the Monogram 48 rangetop so cannot answer for the ovens, but I think you will be VERY pleased with the burners and stainless steel griddle. All burners are full range from ultralow simmer with NO clicking to relight every few seconds all the way up to 18k btu. Ours has the grille and we use it all the time. If you are not using yours due to cleaning 'issues' you have unrealistic expectations of what a 'clean' grille looks like or have insufficient ventilation or both. Cleaning the grill should take about 5 minutes with the burner on high followed by 30 seconds with a SS grill brush and a quick wipe with a damp microfiber towel around the trim. Done. Twice a year we do throw the grates in the oven when we run a self clean cycle and they come back to near new look. Good luck either way. The Monogram is an excellent choice.

If the floor was replaced around 1990 you should not have to worry about asbestos in the floor, unless the old tiles were simply covered over and not actually removed, which is a not uncommon practice. In addition, you should be careful about pulling the existing floor covering and sanding the floor in case there are remains of old adhesive, which also often contains large amounts of asbestos. Sorry to sound negative, but I just wanted you to be aware of what you might be facing so you can make informed decisions. P.S.: Thanks for the trip down memory lane: that pink and gray combo reminds me of a tie I had in high school that made me look cool many years ago. :-)

The old refrigerator appears to be at the end of a run of cabinets (based on the photo which shows the back of chair at the far left). Maybe the thing to do would be to remove the old refrigerator and all the cabinetry to the left of the drawers and wall cabinets. Fix any mess left by the cabinetry removal, and then put a 36" -- and far less-expensive -- free-standing refrigerator in the now empty space where the old refrigerator once stood.