I had the same dilemma when I was assembling my 1986 XJ12 IRS…
The seals were bad and the splines where full of grease so the axle shaft came out of the hubs by hand, a very pleasant surprise.
I could see though traces of Loctite.
As I had no clung noises I decided not to use Loctite and instead assemble them with grease for the ease of disassembly.
However, if clung noises develop it’s very easy to go back, clean the grease and ad Loctite.
And since you have the hubs out, have you thought to modify the grease vents and replace the fulcrum felt seals with modern lip seals ?