Look at whether you can get those things in a higher trim or as a option. Sometimes it can e more cost effective to put a little more money into go up a trim level.
If its not an option on the car the you’re looking at whether not having said item is a deal breaker or not. If it is then you’ll need to look at something else.
Best thing is to write down the price of the different trims and the look up what the spec is for each to compare.
If it’s something you must have to se the car independently and you can’t afford it and are on low income or means tested benefits then you can apply for a grant from motability