We live not too far from Auto Zone, Advance, NAPA, a few small independents, and Harry's U Pull It, billed as the largest u-pull-it in the Free World (?). They have an amazing amount of XJs and Grands to pick from. A-Z and Advance have the best hours, and depending on what time of evening I need a part, they may be the choice. But I'm starting to use the NAPA store more, they have a resident Jeep-head on the counter, and their prices are very competitive. Suspension parts I will get from Quadratec, if I can wait, but they're not too far away, and at times the part can be here the next day!
Although, I could not begin to guess who would ship parts to Eastern Europe, but in the computer age, anything is possible!