Hi Victa.ducky, mate, unless someone is wrecking one of these, you will be lucky to find one, also with the modifications to your machine...(the front wheels on the side) I can't see what parts are missing for height acjustment and roller attachment.
The roller is a segmented wooden affair...(see pic below)

[Linked Image from i266.photobucket.com]
Can you post a front-on pic for us to see what's missing?
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin