I generally 3D design and print my own motor mounts, servo mounts and most everything that goes inside the hull. The photos are my Graupner "Dusseldorf" fireboat under complete rebuild (if I can get back to it).

Even if you buy motor mounts you still need to fasten them to something. This method (3D work) is easier for me. Temporarily hold the motor(s) in place, take measurements, then make the mounts.

Lew

Try this company.

https://inwoodmodels.com/product/overlander-3536-06-1300kv-brushless-motor/

2 Phoenix Court,
Off St Margarets Way,
Stukeley Ind Est,
Huntingdon,
PE29 6EA

My engine mounts are bought from eBay Pat and have never had any supply problems, but with the Blackpool Show coming up this weekend you could probably pick some up when you are there?

Bob.

I 3D print my motor mounts or fabricate them from 1/8" Aluminium sheet but Cornwall Model boats should have them and you will definately be able find some at the Blackpool Model Show this coming weekend..