I just did a quick search on the site where we found our difficult-to-fit shower and I don't see any tub-shower combos that small lengthwise (smallest is 72" - 183cm). However, in both of our bathrooms, the shower enclosure goes into the surrounding wall by almost an inch so that could work. or you might be able to use a free-standing tub where you sit to shower.

Either of those options leave 30-40" of space (81-101cm) so you could put a toilet in that much space. They have toilets that you wash your hands above and the gray water is re-used to flush the toilet.

I think it's going to feel pretty cramped and you'd be better off with just a shower so you could have a separate sink.

The showers & tubs I was looking at are on aquaticbath.com and the sink over the toilet is made by sinkpositive.

Hi Marcy thanks a lot for your feedback! Yes I think I will go for the shower and have that extra space to put some sort of storage or laundry basket I guess! Thanks a lot!