I’d say go for a curtainsider, you’ve got more options on what you load. First time you get some long freight, you are in trouble with a box.
No point you having my ppm, simply because we are specialist and anyway your costs in Czech are not going to be comparable to those in the UK.
I would respectfully suggest that you reasearch this a lot more - you’ll be doing a lot of work for not a lot of money; rates in Europe are on the floor.