Tyre wheel spacers

Hi guys need help I have ex mod 90 c reg and I sold my 200 tdi discovery but kept the freestyle alloy wheels which is I believe 235/70/16r. And to put that on to the defender I need spacers Or shall I get a modular 10x15 wheels and swop the tyres from the freestyle onto the modular will that work ? Reason is trying to keep costs down

Lets ignore the diameter difference for a moment. 235s will not fit on a 10" rim.

.....16inch tyres onto 15inch wheels??? Use tubes!!

that size tyre on a fender will look crap..and the disco offset looks crap on a fender aswell

I mean on to 10x16. Typo. So 235 won't fit right ok I wasn't sure. So the cheapest option is keep As it is. Bog standard army wheels and Michelin tyres ok grand