Hey yowie, Yes I did all the work my self. Depends what state your in but for NSW I run 35's & got them engineered. The max size tyre you can run atm in NSW is 15mm bigger in diameter over the largest tyre offered by the factory for your vehicle if not engineered. When the NCOP comes in 50mm over size will be the limit. Just make sure you do the lift correctly no bogey parts & you'll be alright. Best check with an engineer before you start so you know exactly what you have to do. I rang a few different engineers before I found one that I was happy with. I found some to be oh yea she'll be wright & others that didn't want to know, The fellow I used was on the ball & was fair aslong as my rig meet all the guide lines. I did have to get a muffler put on it before he passed it but other than that he was pleasant & easy to deal with.
Cheers Jono.