thats a real neat looking little MX100 Red!
i've got the 125 of the same year soon to be up for sale.
i agree with Lozza, this smells like Bucket MX and i reckon the idea is bonza!
although it's been a while since i've seen a 100cc cylinder for sale to drop onto my DT motor.
and Wombat, i reckon with a MX meeting or two, you'll be down to 98kgs in no time flat, thus making it difficult for you to qualify. i'm eating pies and choclate as i type so as to ensure my entry into this class.