If your move is in the near future then wait till you move .
There will always be cats sadly .
We put a micro chipped catflap ( about £55) into a glass French Door ( this was IIRC about £250ish)
Cats were £80 each ( neutered/chipped/vaccinated)
Food about £15 every 10 days , add extra for treats 
Insurance , I don't know , DH set this up but it wasn't ££ my two are young .
When we were Cat Searching , the CPL wanted to know about roads, garden, DC (mine are young adults) , things like any plans to move ./ building work.
They were very Judgey when they came to fit their glass panel. We had to give them measurements + the door and wait about 3 weeks. Had to herd the cats upstairs and let a stranger in !
Mine are well settled now but I think any changes would un-nerve them.
Two cats are lovely , they can play , ignore each other , chase each other .
You need a Black Cat in your life . We got two and still cannot tell the blighters apart some days 
So my Top Tip - don't get identical twins !