If we did things more piecemeal, like adding solar, batteries or a diesel heater later, how much of that has to be planned in advance (i.e. leaving the right gaps or installing wiring in preparation).I’d seriously look at a LWB. The extra space is very useable. Ours is my daily driver and there’s no problems. I go to supermarkets and park on the road in towns etc.
We’ve had ours for nearly three years. Bought a decent spec highline panel van then did most of it ourselves over 6 months.
I’d say pop top is essential unless you want to do everything sat down. If you are reasonably diy competent then you can do most things yourself.
I did the windows myself and it was pretty easy tbh. Paid to have a decent pop top with scenic canvas-I can highly recommend a Vanmax as a quality roof that won’t break the bank.
We still have the double bench seat up front. There’s a massive amount of storage underneath that seat. We get all our clothes under there and I don’t find it too uncomfortable. Just back from 1500miles in Scotland no probs.
Look at how you intend to use the van and spend your money wisely. You don’t need 350w of solar and 2 lithium batteries if you only have the fridge and a couple of led lights. We didn’t have solar for over a year and could still do over 48 hours off grid no probs. We now only have 100w solar but will have a lithium battery in the next couple of weeks.
You can do the conversion in stages.
A diesel heater is brilliant, but you can manage a winter without one and it can be fitted as funds allow. Same with solar.
Put the money into getting the best basics of what suits YOU then add the finishing touches as and IF you need them.
We'd 100% have a professional company do this!