1959 Holdsworth Monsoon.

[Glug]

Forks look a bit simpler on the red bike.

Yep, I'm not certain what the Monsoon forks should look like.
For comparison here's some forks of a 1961 Cyclone (matching frame numbers, my paint)

 

[Glug]

Apparently the Monsoon fork crown changed a few times.
Here's the history: https://www.nkilgariff.com/HoldsModelPages/Monsoon.htm

 

[Psimpson]

Apparently the Monsoon fork crown changed a few times.
Here's the history: https://www.nkilgariff.com/HoldsModelPages/Monsoon.htm

I think it unlikely that we will find a spare set of forks, so it will have to go with what it’s got. Just waiting for a few more parts before I build it up. It’s going to be a mix of parts some later than the bike, if it had the original forks I might have tried to keep with same period parts.

 

[Glug]

The forks you've got look pretty good from what I can see.

If you get bored here's my not totally period 1961 Cyclone parts list:
https://www.bikeforums.net/classic-vintage/1278777-1961-holdsworth-cyclone-build.html?ispreloading=1

 

[Glug]

And here's another 59 Monsoon on Ebay
https://www.ebay.co.uk/itm/126551290586
'Fully ' restored for £1500, not certain how much would be original though.

 

[Foreigner]

@Psimpson Monsoon forks - I left this frameset with Mario earlier this year, he may still have it..

 

[Psimpson]

Dry run of components before building up, Holdsworth transfers a little low on the down tube.