For the price of a used mark x 250G it would be around 2.5 to 3 million for a good low mileage vehicle. If you go for a freshly imported one it should lie in upper side of this range. You could go for a high mileage mark x for even cheaper, but in that case you may have to spend a lot on maintenance and repairs.
For tyres and rims it depends a lot on if you choose slightly used rims and new tyres. It should cost you around 1 lacs for tyres and rims, if your old tyres are not totally worn out and you can exchange for new ones at a discount.
Do keep in mind that if you purchase a less driven mark x you should ideally look for one that already has good rims and tyres installed. You could save a lot of money as the tyres when new are expensive but once used loose their value instantly.