Looking for Grandads 135’s registration: LPM 104E, MPN 698F and NAP 240M

My Grandfather sold his Farm in Icklesham E. Sussex on 26th June 1974 with 3 x 135 and I would be interested in buying one back.  Last heard of in sales brochure below.

Can anyone help?; kind regards james symington wjames.symington@gmail.com