Yeah, as far as I know it is basically trial and error getting the a 3d HUD to show up in the right place. But (obviosly), you could do something like -
camx# = camera position x()
camy# = camera position y()
camz# = camera position z()
position object 1,camx#,camy#,camz#-30
lock object on 1
To get yourself in the ballpark. Of course, that would change some depending on how big your enviorment is, though. And it's also kind of tricky to get dials, indicators, et cetera, working with a 3D HUD.

2.3 Gigs. 1993 MHz. 256 MB Ram. Home Sweet Home.