Sounds like you had a great time running Chunk at your club meet, hassling and beating 4wds with a 2wd chassis is sooooo satisfying, but gotta make sure you remind them when you pass that your only driving a 2wd
If you want a super tough front end there are some ali steering blocks on 'the bay' not a bad price either -
http://www.ebay.co.uk/itm/STRC-Alu-S...#ht_1928wt_910
and Chunk S4 is coming .... slowly