1 000 IFV is a far strech bro. Let's be realistic the procurement budget is probably not the highest, and Bangladesh has a lot to modernize. It seems like, and I hope that the Bangladeshi leadership is transforming all of its branches in both weapons, but also the way to conduct modern warfare. Yes, I did not look into the quantity of MLRS and the air defense systems but I was more thinking about what's present at the moment. Artillery is much cheaper compares to missiles, and it has always been the backbone of armies for centuries.When it comes to IFV/AFV we probably gonna need around 900-1000 of them.
Those will be wheeled instead of tracked. For example, BMC's Altug or FNSS pars iii equipped with Aselsan's 35mm Korhan turret would be cost effective but nevertheless capable platform. This process to replace all of our BTR-80 and old Chinese/soviet vehicles will take a decade at least. Probably starting at late 2020s and ending at late 2030s.
About MLRS I think we need one more regiment to deploy at our north west region. The same is true with Hisar O+, we are probably buying 1x regiment initially but will need 1x more.
And about the quantity of Artillery you are dead right. Both when it comes to the numbers of platform and number of shells. ( that is why I think that domestic production line would help)
Morocco has lots of M109s, that is a big plus point for you.
Any plan to raise the defense budget? Bangladesh could need a heavy lift for the next years coming to 2030 for a huge transformation.