George'sArosa

Hi guys, I have a 2004 Seat Arosa and I really want to swap the interior because the current one really let's the car down. I'm interested in buying the mk1 Audi TT seats (Front and Rear) as it seems this is what most people are putting in. I know the rear bench is a relatively strait forward swap but can anyone tell me how much work needs to go into putting TT seats into the front? Is there a lot of welding and adjusting needed? Or is it also relatively strait forward? Cheers