Out of the two you have listed the B44 will be the easiest to get parts for.
BUT: You have just bought a Losi XXX4 which will do you absolutely fine for the time being as pretty much every car will overstep your personal ability. I don't mean this as a personal putdown.
You are really making yourself look like a complete muppet as you carry on buying stuff at a rate of knots and not at all getting aquainted with any one car in particular. Forever changing cars will not do your progression as a driver any good at all as you will have no experience whatsoever to go on to get it running right.
Along with the B44 you will also go and have to buy saddle pack lipos as your stick packs will not fit.
Check the for sale section on here. Someone is selling an X5 without shocks, so you could actually make a decent car out of the XXX4 and that. That said I don't believe from the impression you convey over the forum that you will come to terms with either car as you lack the commitment and patience required to set a car up properly for racing.
If you really want to start racing stick with a 2wd as they require less maintenance and you can get away with budget electronics far better than in a 4wd. This advice has been given to you so often that this thread is doomed to becoming another Stampy-Bashfest...
I feel empty for having written so much yet again to someone who has been outright rude to me personally and others but hey.
Dreading your answer
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