Of course the axle mounts are somewhat affected but invisible once the front wheel is mounted. The disc brake mount is also used.
1 1/8 Steerer, steerer length is approx. Mind this: although this fork is in mint condition, and is holding its air, I strongly advise servicing this fork by a professional. We are talking about a fork over 2 decades old.
Also take a look at my other advertisements with Vintage Bicycle stuff! The item "RockShox SID XC 1999 Vintage Fork 26 RED for GT Zaskar Xizang Lightning" is in sale since Friday, August 20, 2021. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Forks". The seller is "vintagebikercom" and is located in Ugchelen. This item can be shipped worldwide.