I've a couple of ideas.
From Britain
First, to have a decent armoured car than can scout and defend itself if needs be.
Coventry Armoured Car
Development began in late 1943 by the Rootes concern. Humber designed the hull, Commer the transmission and Daimler the suspension (independent swinging axles with drive taken from two shafts from a central transmission unit) and steering. A 160hp Rolls-Royce B60 petrol engine is fitted and the armament comprises a 6pdr gun and co-axial MG. Armour is 14-8mm thick and a crew of four is carried. In 1944, 800 were ordered for the British Army to be delivered 1945-48. Maximum speed is 40mph; range 250 miles and weight is 11.5 tons.
The second is a slightly bigger purchase, a new rifle to replace the old Lee Enfield.
Britain can offer the .280 Rifle No.5 Mk III with the Enfield Lock .280 7x43 cartridge.
I know that's a calibre Ireland doesn't use, but, if they operate with British forces in the future they will have a common supply of ammunition and when the time comes (soonish) that the TADEN LMG comes out using the same ammunition you will have a replacement for the Breire (or you could re-chamber/re-barrel for the smaller round).
From Argentina
Nothing fancy, just some pistols and SMGs for sale.
Halcón M-1943 is a submachine gun chambered in both 9x19mm Parabellum for the Army and .45 ACP for Police Forces. This weapon is comparable in quality and performance with the Thompson submachine gun. The Halcón M-1943 has a fixed stock protruding from its grip section. It weighs 4.75kg, is 850mm long, the rate of fire is 700rpm with an effective range of 200m. It uses 30/36/40 round box magazines.
Ballester-Molina (.45 M38/BM): The Ballester-Molina was designed and built by the Argentine company Hispano Argentina Fábrica de Automotores SA (HAFDASA). The Ballester was designed to offer the Argentine police and military a less-expensive alternative to the Pistola Colt Modelo 1927, which was itself a licensed copy of the Colt M1911A1 (and was built under the supervison of Colt engineers). Production of the Ballester-Molina began in 1938. As the Ballester-Molina was designed to serve alongside the M1927 it bears a striking resemblance to the Colt M1911A1. The Ballester-Molina and the M1911 share an identical 7-round magazine, barrel, recoil spring, and barrel bushing. Although many other parts appear identical at first glance, they are not. Many parts are adaptable, however. The locking system is a near identical copy to the Colt M1911A1, with the swinging lock that is used to unlock the barrel from the slide. The trigger is single action, two stage, but pivots rather than slides like the 1911 trigger. The hammer is locked by the frame-mounted manual safety, and there is no grip safety. Overall quality is excellent. Weight is 1,130g unloaded and length is 127mm.
Criolla (.22 M40/HA): The Criolla is a .22LR calibre semi-automatic pistol manufactured by HAFDASA. The weapon is intended for training purposes and can deflect cartridge ejection either left or right side simply by rotating the bolt around. It has a ten round box magazine. The Criolla pistol is also sold as the Zonda C22 on the civil market
From Belgium & Netherlands
? Dunno yet but might have something for you after the bank holiday weekend!