The is no such 7’5t business.
There is business to cater for your customers needs. If you don’t have customers, you don’t have s business.
I would be very careful in plowing all your money in this industry.
Better off getting a real qualification (electrician, plumber, excavator operator or something like that) and trying to set up something in that industry.
In transport the service you provide is an overhead for any business. Every business looks to cut their overheads. Therefore the profitability is very slim. If anything goes wrong your weeks profits might go out of the window in 3sec.
Example: yesterday on one of our ategos the metal pipe from the air dryer to the compressor went. Vehicle broke down in Cannock, we are based in Bristol. Time was 2pm. If we did a call out they would not be able to repair the pipe as Mercedes dealers dont sell them bent in the right shape, but as a length. Ended up running around dealerships to get the parts and then head up to repair it, and bend the pipe to how it should be. Turned out in an 18h day. If you buy a new vehicle on finance or lease it these problems can be minimized, but so will you profit reduce even more so. So instead of making around 8% you might make 6% margin.
If you go and work as a subby for any large organizations (xpo, wincanton, bwd) they will give you a day rate or run rate which you wont have any control over.
It’s a very low profitability industry with many unknowns on a daily basis.