Meerkat H1 General BMX I have a bike on which I’m looking for information. Serial number is T80409c3 I believe.  Has been stored in a garage and has all original parts minus the kickstand that was aftermarket. I believe it to be a prototype. 

It’s a Chromoly frame.
You have a F1 racing BMX - probably from around the late 1980s.

They have 20" wheels and generally steel frames, and often feature BMX style brakes, and the crankset on this one is a one-piece construction.

Differences to regular BMXs, they are built with derailleur gears and a sloped top-tube.  Also, the bars are not traditional BMX ones but are either short flat bars or somewhat aero bars to encourage a lower more-aero position.  Some brands even fitted non-round biopace chainrings to appeal to the racer crowd.  Even disk wheels were fitted to some, for added aero benefits.



There are many more photos at https://bmxsociety.com/topic/48820-general-meerkat-l1-m1/   Notice the disproportionally long cranks too - that seems to be common, showing it was more about straight line power than manoeverability or tricks and stunts.

You're right - these would not have been kickstand bikes so that's definitely after fitment.