well in my opinion i started a build and it went from good to stuck as i had spend a lot of money on it and bearley started so if i was you i would just buy a bike and slowlet upgrade it... funbikes are doing a pbc special for £499 and free delivery have a look in the other post.. you might like it..
couldnt say about mags offroad but personally i wouldnt say it was a great idea but i just got some of these today and god the quality for the price is amazing
never seen the style of frame before but engine is spot on i know loads who have them very reliable and tunable to boot my mate has had his port and polished high comp piston and z40 race cam fitted and its an absolute monster