It does look like a direct swap. Surely if it was some1 would of used it ?
it looks good from the pic.. for phase 2.. for 13 quid I'd give it a shot..
Also .. and I only half believe it myself..
if the plastic bush on your phase two is knackered.. and it is "keracking"
wait for it ...
wrap a few turns of dental floss around the pin adjacent to the bush..
I'd have to see it to believe it ..
On P2's the root cause of the problem seems to be the plastic bush failing.. causing too much play and then eventually destroying the mechanism.
If I had a P2.. I would drill out the the fixed pivot pin.. replace the bush with brass and fit a roll pin..
Also the mechanism/ door securing bolts can work loose causing even more play.. I've stuck a couple of spring washers under mine..
Well I'm going to have to give up with this obsession now
at least we now know that there are straps from other models that fit or can be made to fit ..