NO to washer and dryer

Abt came by today to give us a quote on what it will take to put the tankless water heater, washer, and dryer in our condo. As we are talking to them they are adding to the cost left and right. Talking about drilling a hole in the roof, re wiring electricity, re wiring gas,... Then what I thought was the worst news of all came out. The guy's that came were plumbers and so they called an electrician to see how much it would cost to add another electricity line from our breaker box into the utility closet. While he was on the phone he explained what we were trying to do. We heard him say "Oh I see" and we couldn't tell if it was a good thing or bad thing. Then he hung up the phone and said the manufacturer will not allow us to stack a front loader washer and dryer on any floor above the first unless the floor it will be on is concrete. Of course we don't have concrete, so basically we would have to get the crappy washer/dryer that come stacked already. We had one of those in our downtown condo and we could barely do six shirts at once.
One of the other things the plumbers were concerned about was whether or not we had enough gas to power all the appliances in our house once we add the tankless water heater and dryer into the mix. John took the guys to the basement so they could see our gas supply. While down there they determined that if we did put the tankless water heater in we WOULD NOT have enough gas power. That was the real kicker right there. There are tankless water heaters that are electric but we would run into the same problem with the amount of electricity it requires and the gas ones work much better.
Basically there are options we could do to get a washer and dryer without removing our water heater. We could take out our half bath and put in a washer and dryer, but we would still have to re-wire and drill a hole in the roof to vent out the dryer. We could also get really small stack-able and put it in the closet with the water heater, but again we would have to drill a hole in the roof and it would be really tight and we don't think it would be safe. Basically after going through all the options we decided if we can't get a tankless water heater and we can't get the front loaders, then it isn't worth doing...