Hi John,
I got this kit in 1994,(£180), and I can't remember any problems building it, though slotting the guide horns on the track links was a labour of love!!, and this was the first resin kit I built
As for being accurate,it's pretty well spot on,the 1/16 add ons should be ok.
I used poly filler fine for the zimmerit,shaped with a coping saw blade.
Unfortunately while air brushing the final colour on the turret roof my airbrush went pear shaped,and the project got shelved,UNTILL NOW
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I've got a new ab and compressor,so she's back on the must do list along with the 1/16 r/c early tiger .
When I sus out how to post some pics I'll stick some of this baby on.
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Andy