If you allow 9 metres (30ft) deep and 4.5 metres (14ft) for each truck plus 3.6 metres (12ft) minimum stud height (14 ft would be better)you should be right for any type of vehicle, Studebaker or LWB CMP plus probably have room behind for a workbench.
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Cheers
Cliff Hutchings
aka MrRoo S.I.R.
"and on the 8th day he made trucks so that man, made on the 7th day, had shelter when woman threw him out for the night"
MrRoo says "TRUCKS ROOLE"