Hi Mate,
If I were you, if you could afford it , I would upgrade to a new motor with Electric start and power trim and tilt.
I know Yamaha make a 25 4 STROKE with electric start and power trim and tilt for around $5000 in brisbane. I know because I bought one in 2007 and it's fitted to an Allycraft 410 Rhino.
I bought this because I have cerebral Palsy and can't lift it without it, as it weighs in at 72kg.
I also love my mud crabbing and it's perfect for working in the shallows, no more having to lean over and manually tilt your motor.
Just my opinion,
Cheers
Scott.